Related by context. All words. (Click for frequent words.) 73 adenoma detection 71 cecal intubation 71 colonoscopic 68 sentinel lymph node biopsy 68 perioperative morbidity 67 postoperative mortality 67 spiral computed tomography 66 PSA nadir 66 F FDG PET 66 EUS FNA 66 CT coronary angiography 66 Virtual colonoscopy 66 postoperative infection 66 arthrography 66 upper endoscopy 65 postoperative morbidity 65 coronary CTA 65 transesophageal 65 preoperative MRI 65 electron beam computed tomography 65 transrectal ultrasound guided 65 advanced adenomas 65 PSADT 65 endoscopist 65 Bone density 65 serum PSA 65 helical CT 65 FDG-PET/CT 65 endometrial biopsy 65 SUVmax 65 prostate cancer CaP 65 CT Colonography 65 extracolonic findings 65 surgical biopsies 64 colonography 64 cystoscopic 64 pelvic ultrasound 64 conventional angiography 64 transesophageal echocardiography 64 gauge vitrectomy 64 Surgical excision 64 Radical prostatectomy 64 abdominal computed tomography 64 enucleation 64 pelvic lymphadenectomy 64 guided percutaneous 64 myocardial reperfusion 64 OPCAB 64 myocardial viability 64 paracentesis 64 conventional colonoscopy 64 invasive biopsy 64 glomerular filtration 64 COR Analyzer 64 cytologic 63 adnexal masses 63 central corneal thickness 63 proton MR spectroscopy 63 postoperative pulmonary 63 axillary dissection 63 scintigraphic 63 salivary flow 63 antireflux surgery 63 liver metastasis 63 diagnostic modality 63 endoscopic retrograde cholangiopancreatography ERCGrant Parpan 63 optical colonoscopy 63 cardiac perfusion 63 intra ocular pressure 63 cerebral angiography 63 sympathectomy 63 postoperative complication 63 pCLE 63 BladderChek 63 corneal thickness 63 Hemoccult II 63 HoLEP 63 coronary CT angiography 63 multidetector row 63 transabdominal 63 Computed tomography 62 malignant nodules 62 asymptomatic carotid stenosis 62 postprocedure 62 colorectal neoplasms 62 lymph node dissection 62 axillary node 62 cytoreductive surgery 62 computed tomographic 62 perfusion MRI 62 radiofrequency catheter ablation 62 surgical biopsy 62 opacification 62 invasive coronary angiography 62 trabeculectomy 62 invasive angiography 62 sentinel node biopsy 62 Intraocular pressure 62 Radio Frequency Ablation 62 FDG PET imaging 62 pCR 62 lung resection 62 CT angiogram 62 densitometry 62 Prostate Specific Antigen PSA 62 ovarian malignancy 62 excisional biopsy 62 TRUS biopsy 62 polypectomy 62 EBUS FNA 62 x ray angiography 62 postop 62 MSCT 62 colorectal adenoma 62 hypofractionated radiation 62 adenomatous 62 SLNB 62 arterial stiffening 62 perioperative mortality 62 Sigmoidoscopy 62 intima media thickness 62 endoscopic sinus surgery 62 EBUS 62 adenoma recurrence 62 colorectal polyp 62 thoracoscopic lobectomy 62 CIN3 62 CT colonography CTC 62 vaginal hysterectomy 62 procalcitonin 62 Third Eye Retroscope 62 postoperative chemotherapy 62 SPECT CT 62 urine cytology 62 malignant polyps 62 computed tomography scans 61 postoperative atrial fibrillation 61 fundus photography 61 Cardiac catheterization 61 endoscopic ultrasound 61 endoscopists 61 oncologic outcomes 61 core needle biopsy 61 postoperative hemorrhage 61 adenomatous polyps 61 mammographically 61 gadolinium enhanced 61 intact parathyroid hormone 61 microdebrider 61 transvaginal sonography 61 radioiodine therapy 61 virtual colonography 61 Minimally invasive procedures 61 esophagectomy 61 varicoceles 61 photocoagulation 61 DEXA scans 61 venography 61 glycated hemoglobin levels 61 esophagogastroduodenoscopy 61 pulmonary angiography 61 diagnostic angiography 61 coronary calcification 61 pre operatively 61 cardiopulmonary bypass CPB 61 minimally invasive technique 61 cystoscopy 61 pre cancerous polyps 61 keratoplasty 61 invasive diagnostic 61 conventional coronary angiography 61 colonic polyps 61 HIPEC 61 myocardial uptake 61 R0 resection 61 calcified plaques 61 cytological 61 adrenalectomy 61 Coronary CTA 61 hip resurfacing arthroplasty 61 MRgFUS 61 mammographic density 61 gynecologic surgery 61 coronary arteriography 61 colonoscope 61 multidetector CT 61 node metastases 61 hemoglobin A1c levels 61 carotid artery thickness 61 thyroid nodules 61 intraocular pressure IOP 61 Coronary artery bypass 61 parathyroidectomy 61 serum cortisol 61 hyperplastic polyps 61 albumin excretion 61 postoperative complications 61 liver resection 61 ALA PDT 61 enhanced MR angiography 61 laparoscopic nephrectomy 61 allogeneic HSCT 61 VCUG 61 TUMT 61 posttreatment 61 angiography CTA 61 colon capsule endoscopy 61 chlamydial infection 61 repigmentation 61 infarct size 61 iPTH 61 detecting polyps 61 axillary node dissection 61 troponin T 61 transrectal ultrasound 61 AGHD 61 PASI scores 61 specific antigen PSA 61 CP CPPS 61 foveal thickness 61 AST ALT 61 abdominal ultrasound 61 transient elastography 61 catheter angiography 61 serum thyroglobulin 61 axillary lymph node dissection 61 pretest probability 60 myocardial necrosis 60 angiographic restenosis 60 chest radiographs 60 prostate TURP 60 thyroglobulin 60 PAP smears 60 MS relapses 60 Flexible sigmoidoscopy 60 glycosylated hemoglobin HbA1c 60 Phacoemulsification 60 sentinel node 60 MitraClip device 60 myocardial perfusion 60 FDG uptake 60 laparoscopic radical prostatectomy 60 radiographic imaging 60 endometrial carcinoma 60 Heavy menstrual bleeding 60 mediastinoscopy 60 intraobserver 60 alteplase 60 oral anticoagulation 60 Tomosynthesis 60 prostate cancer metastases 60 carotid stenosis 60 carotid IMT 60 nodal metastasis 60 SpO 2 60 transfemoral approach 60 anastomotic leak 60 sensitivity specificity 60 abdominal aneurysms 60 advanced adenoma 60 adjuvant therapies 60 transthoracic 60 nephrectomies 60 Carotid artery 60 extracapsular extension 60 HER2 expression 60 guaiac 60 catheter ablations 60 colon resection 60 lumbar disk herniation 60 liver biopsies 60 Elastography 60 radical cystectomy 60 cancerous polyps 60 RAS mutations 60 TKAs 60 hemoglobin hematocrit 60 coronary computed tomography 60 sigmoid 60 computed tomography CT scan 60 arteriography 60 B7 H3 60 epithelial ovarian cancer 60 attenuation correction 60 needle aspiration 60 lymphadenectomy 60 bronchoalveolar lavage 60 thrombotic complications 60 intracranial stenosis 60 micrometastasis 60 endoscopic resection 60 ERCP 60 elevated IOP 60 Bronchoscopy 60 Circulating tumor cells 60 transurethral 60 LAGB 60 thermogram 60 artery stenosis 60 computerized tomography scans 60 dosimetric 60 endoluminal 60 IOL implantation 60 contralateral breast 60 directed thrombolysis 60 noninvasive imaging 60 carotid artery stenting 60 EBRT 60 wound dehiscence 60 radical prostatectomy RP 60 preoperative chemotherapy 60 postoperative bleeding 60 ultrasonographic 60 incisional hernias 60 ASCUS 60 CT angiography CTA 60 corneal ectasia 60 colon rectal 60 vascular anatomy 60 postoperative AF 60 pre malignant lesions 60 perioperatively 60 Corus CAD 60 Zevalin consolidation 60 PET CT scanning 60 VATS lobectomy 60 noninvasive painless 60 postoperative radiotherapy 60 laparoscopic technique 60 catheterisation 60 precancerous tumors 60 renal cell carcinomas 60 PSA kinetics 60 calculated creatinine clearance 60 CIN2 + 60 chest radiography 60 cataract formation 59 unresectable tumors 59 Postoperatively 59 atrial fibrillation ablation 59 chemoembolization 59 antigen PSA levels 59 serum urate 59 distal colon 59 platelet reactivity 59 spirometric 59 precancerous polyp 59 fibrin deposition 59 abdominal hysterectomy 59 adrenal function 59 endoscopic ultrasonography 59 Lymph node 59 neurocognitive function 59 ventricular enlargement 59 Radiofrequency ablation 59 pathologic examination 59 TURBT 59 axillary lymph nodes 59 mammographic 59 peritoneal cancer 59 Flexi Scope 59 transapical approach 59 contractile function 59 transrectal 59 atrioventricular block 59 salpingo oophorectomy 59 positron emission 59 atherosclerotic renal artery stenosis 59 serum calcium levels 59 serum uric acid 59 preoperative diagnosis 59 ophthalmoscopy 59 MDCT angiography 59 Coronary angiography 59 coronary blockages 59 endoscopic retrograde 59 FDG PET CT 59 PAP smear 59 OGTT 59 Sentinel node biopsy 59 femoral neck fracture 59 pancreatic resection 59 postintervention 59 cosmesis 59 cTnI 59 creatinine levels 59 laparoscopic cholecystectomy 59 chronic prostatitis 59 chemosensitivity 59 complete cytogenetic response 59 cardiac catherization 59 mediastinal 59 tissue oxygenation 59 DHEA supplementation 59 varices 59 gynecologic procedures 59 laparoscopic hysterectomy 59 antiplatelet medication 59 Mohs surgery 59 Cystectomy 59 Mohs micrographic surgery 59 fundoplication 59 malignant lesions 59 polyp removal 59 multislice 59 inotropic agents 59 detecting colorectal cancer 59 malignant growths 59 core needle biopsies 59 electrical cardioversion 59 fluoroscopic 59 benign polyps 59 endosonography 59 RALP 59 carotid artery blockage 59 flexible sigmoidoscopy 59 SPECT CT imaging 59 tamponade 59 stratifying patients 59 prostate biopsy 59 carotid atherosclerosis 59 androgen suppression therapy 59 graft patency 59 breast MRI 59 nodal metastases 59 colonoscopy 59 urine dipstick 59 Cystoscopy 59 Colorectal cancer screening 59 multislice CT 59 serum lipid levels 59 CDI recurrence 59 extrapleural pneumonectomy 59 cCTA 59 bilateral oophorectomy 59 preoperative staging 59 computerized tomographic 59 coblation 59 upper gastrointestinal bleeding 59 retinal thickness 59 serum phosphate 59 radical nephrectomy 59 curability 59 tracer uptake 59 potentially cancerous polyps 59 GnRH agonists 59 EBCT 59 sentinel nodes 59 hepatic lesions 59 ductal cancer 59 DEXA scan 59 Skin sterol 59 colorectal cancer CRC 59 lung nodules 59 unsedated colonoscopy 59 biochemical relapse 59 endoscopic ultrasound EUS 59 cardiac repolarization 59 FDG PET 59 proliferative diabetic retinopathy 59 barium swallow 59 vascular reactivity 59 thrombolytic therapy 59 β blockers 59 Capsule endoscopy 59 multifocal IOLs 59 transurethral resection 59 p# biomarker 59 dose ionizing radiation 59 laparoscopically assisted 59 hepatectomy 59 adjuvant radiation 59 radical retropubic prostatectomy 59 N telopeptide 59 sacrocolpopexy 59 Hb A1C 59 spherical aberrations 59 plasma cortisol 59 nonobstructive CAD 59 angiographically 59 sonographic examinations 59 chemoradiation therapy 59 nonfasting triglyceride levels 59 urine albumin 59 #F FDG PET 59 aromatase inhibitor therapy 59 ductal lavage 59 postoperative infections 59 advanced neoplasia 59 bone scintigraphy 59 luminal diameter 59 plasma glucose levels 59 metastatic lymph nodes 59 sonographically 59 Ultrasonography 59 lymph node biopsies 59 D dimer 59 percutaneous cryoablation 59 POAG 59 thymectomy 59 cervical precancer 59 transaminase levels 59 microdissection 59 ProstaScint 59 urethral stricture 59 lidocaine gel 59 tumor resection 59 sonographic diagnosis 59 Prostate specific antigen 59 carotid artery stenting CAS 59 Magnetic resonance 59 endometrial hyperplasia 59 atheroma volume 59 brachial artery flow 59 stent stenosis 59 tumor excision 59 ColoMarker 58 amyloid deposition 58 computed tomographic scans 58 debulking surgery 58 breast asymmetry 58 digital rectal examination 58 growth hormone secretion 58 TOF PET 58 CT angiograms 58 wedge resection 58 Coronary CT angiography 58 Dural Sealant 58 robotic prostatectomy 58 atypical ductal hyperplasia 58 esophageal manometry 58 plain radiographs 58 extubation 58 manometry 58 aortic stiffness 58 ThinPrep Pap Test 58 sternal closure 58 sonographically guided 58 percutaneous vertebroplasty 58 reperfusion therapy 58 Optical coherence tomography 58 neutrophil counts 58 frameless radiosurgery 58 blood glucose concentrations 58 antibiotic prophylaxis 58 intestinal permeability 58 perfusion defects 58 Transurethral 58 minimally invasive laparoscopic surgery 58 cystectomy 58 cardiac magnetic resonance 58 Vizilite 58 thyroid hormone levels 58 DMIST 58 focal ablation 58 ESWL 58 inhospital mortality 58 NIHSS score 58 lymph node metastasis 58 VEGF expression 58 mineral density BMD 58 salivary cortisol 58 urolithiasis 58 nodal dissection 58 EBUS TBNA 58 posttransplant 58 renal artery stenting 58 metabolite concentrations 58 fluoroscopically guided 58 #F FDG 58 Breslow thickness 58 rate variability HRV 58 tumor perfusion 58 detect precancerous 58 hs CRP 58 urodynamic 58 CT colonography 58 polyp recurrence 58 perfusion imaging 58 eosinophil count 58 PROLARIS 58 gastric acidity 58 refractive correction 58 impair fertility 58 PET CT imaging 58 acute aortic dissection 58 laparoscopic partial nephrectomy 58 lung resections 58 colon polyp 58 CPAP adherence 58 nuchal translucency 58 corneal astigmatism 58 pulmonary dysfunction 58 transcranial Doppler 58 estimated glomerular filtration 58 lactate dehydrogenase 58 glycated hemoglobin HbA1c 58 minimal invasiveness 58 orchiectomy 58 HbA 1c levels 58 thrombus formation 58 thyrotropin levels 58 ALND 58 oral anticoagulant therapy 58 intravitreal triamcinolone 58 recurrent VTE 58 undergoing radical prostatectomy 58 Sentinel Lymph Node Biopsy 58 perioperative complications 58 HDR brachytherapy 58 paraprotein 58 ischemic lesions 58 hepatic arterial 58 esophagogastric 58 intraoperative complications 58 lung metastasis 58 thyroid stimulating hormone 58 serum testosterone levels 58 renal scarring 58 Adenomas 58 varicocele 58 serum phosphorous 58 obstructive CAD 58 lung biopsy 58 Colon polyps 58 Cryoablation 58 T1 weighted images 58 androgen ablation 58 Cataract surgery 58 prophylactic oophorectomy 58 serum clusterin levels 58 carotid endarterectomy CEA 58 fluorodeoxyglucose positron emission tomography 58 mediastinal lymph nodes 58 less invasive laparoscopic 58 upper GI endoscopy 58 post operatively 58 CT angiography 58 PET tracers 58 shock wave lithotripsy 58 pre cancerous growths 58 Subgroup analysis 58 cranial radiation 58 artery embolization 58 atypical hyperplasia 58 interobserver 58 beta blocker therapy 58 Fine needle aspiration 58 ductal breast cancer 58 endometrial lining 58 barium enema 58 endothelial keratoplasty 58 barium enemas 58 multimodality therapy 58 balloon angioplasties 58 ultrasonographic examination 58 nonproliferative 58 screening colonoscopy 58 lobectomies 58 ductal carcinomas 58 abnormal uterine bleeding 58 precursor lesions 58 nephron sparing surgery 58 Carotid stenting 58 partial nephrectomy 58 serum calcium 58 lactate dehydrogenase LDH 58 cervical cytology 58 hepatic fat 58 IV bisphosphonates 58 interferon ribavirin 58 laser photocoagulation 58 Breast Specific Gamma 58 chemoprevention trials 58 albuminuria 58 colorectal cancer liver metastases 58 radiographic examinations 58 biologic plausibility 58 Angiographic 58 left ventricular diastolic 58 intravenous diuretics 58 lung nodule 58 echocardiographic parameters 58 electrophysiologic 58 UPPP 58 Ejection Fraction 58 endovascular aneurysm repair 58 isoflavone supplement 58 cataract extraction 58 intracerebral haemorrhage 58 oesophageal adenocarcinoma 58 lymph node metastases 58 epidural analgesia 58 intraoperatively 58 Computed tomographic 58 laproscopic procedure 58 inotropic 58 Duodenal 58 premalignant lesions 58 VADT 58 estimated GFR 58 operable breast cancer 58 hepatic fibrosis 57 conventional Pap smear 57 pulmonary artery banding 57 computed tomography CT angiography 57 MR angiography 57 thyroidectomy 57 Carotid endarterectomy 57 triglyceride concentrations 57 cranial irradiation 57 fibroadenomas 57 prolongs survival 57 Fontan procedure 57 serum urate levels 57 adenomas 57 lobular breast cancer 57 proliferative retinopathy 57 neurodevelopmental outcomes 57 paricalcitol 57 metastatic lesions 57 corneal neovascularization 57 coronary angiogram 57 capsulotomy 57 cancerous colon polyps 57 KRAS mutation 57 HistoScanning 57 lymphatic mapping 57 blocked carotid arteries 57 myomas 57 liver biopsy 57 plasma triglycerides 57 extracapsular 57 phakic 57 symptomatic VTE 57 coronary stenting 57 periprocedural 57 inguinal hernia repair 57 serum bilirubin 57 Imaging BSGI 57 histopathologic examination 57 platelet activation 57 node dissection 57 spiral CT scan 57 IOP lowering 57 reinfarction 57 upper gastrointestinal endoscopy 57 TORS 57 nonmelanoma skin cancers 57 endometrial thickness 57 submucosal 57 Hypertrophy 57 cardiac troponin 57 International Normalized Ratio 57 interstitial brachytherapy 57 intracapsular 57 bone marrow aspiration 57 bladeless LASIK 57 digital subtraction angiography 57 iterative reconstruction 57 abnormal cytology 57 tracheal intubation 57 randomizing patients 57 intravitreal injections 57 pacemaker implantation 57 graft occlusion 57 laparoscopic fundoplication 57 systolic dysfunction 57 Virtual Colonoscopy 57 Carotid IMT 57 LVNC 57 baseline LDH 57 locoregional recurrence 57 elevated CRP 57 immunochemical fecal occult 57 intravascular ultrasound 57 Balloon sinuplasty 57 coronary angiograms 57 Liver transplantation 57 revascularization procedure 57 hemoglobin A1c HbA1c 57 Antibiotic prophylaxis 57 uncorrected visual acuity 57 Endometrial ablation 57 extracranial 57 mL/min/#.# m 2 57 aminotransferases 57 laparoscopic appendectomy 57 transarterial 57 coronary angiography 57 intraperitoneal chemotherapy 57 balloon dilation 57 lymph node removal 57 biliary tract 57 interobserver agreement 57 pT3 57 metachronous 57 renal biopsy 57 endoscopic biopsy 57 upper endoscopies 57 alanine aminotransferase ALT 57 Doppler echocardiography 57 mucosal healing 57 carotid artery ultrasound 57 Abdominoplasty 57 Mammographic 57 cervical lesions 57 ablative therapy 57 clinically localized prostate 57 intravesical therapy 57 acoustic startle 57 detect polyps 57 atherosclerotic lesion 57 underwent coronary angiography 57 sonographic evaluation 57 Fecal occult blood 57 autoregulation 57 Coronary artery calcium 57 prospective multicenter study 57 coronary catheterization 57 diskectomy 57 neurodevelopmental outcome 57 glycosylated hemoglobin levels 57 hemodilution 57 colectomy 57 pneumonectomy 57 renal cysts 57 SLN biopsy 57 HbA1C 57 coagulation parameters 57 plasminogen activators 57 corneal topography 57 PET CT scan 57 carotid plaque 57 Subgroup analyzes 57 H. pylori eradication 57 bowel polyps 57 hormone receptor negative 57 Plicator 57 cystoid macular edema 57 sentinel lymph node 57 stereotactic radiotherapy 57 lipid lowering therapy 57 biliary tract cancer 57 NATRECOR ® 57 #.#ng/ml 57 pre cancerous adenomas 57 invasive ductal breast cancer 57 pancreatic lung 57 recurrent venous thromboembolism 57 BSGI MBI 57 benign nodules 57 parathyroid 57 conformal radiotherapy 57 endovascular procedures 57 postoperative radiographs 57 HER2 amplification 57 Postoperative complications 57 abnormal pap 57 percutaneous drainage 57 serum estradiol 57 biliary tree 57 antiangiogenic agents 57 HIV HCV coinfected 57 hematopoietic cancers 57 Coronary artery bypass graft 57 mediated dilation 57 MDCT scans 57 Doppler ultrasound 57 NMP# 57 urine NGAL 57 nonalcoholic steatohepatitis NASH 57 NSTE ACS 57 benign prostatic hyperplasia enlarged 57 bronchial inflammation 57 excisional 57 transnasal 57 laparoscopic colectomy 57 computed tomography angiography 57 neovascularisation 57 abdominal pelvic 57 resynchronization therapy 57 hematologic parameters 57 VerifyNow 57 LV dysfunction 57 exhaled NO 57 carotid artery stenosis 57 carotid angioplasty 57 noninvasive diagnostic 57 Preoperatively 57 axillary 57 para aortic 57 cervical fusion 57 intestinal motility 57 deCODE ProstateCancer TM 57 liver histology 57 preoperative evaluation 57 natriuretic peptides 57 diagnose Alzheimer disease 57 Carotid artery stenting 57 preoperative PSA 57 iDXA 57 full thickness plication 57 Endoscopic ultrasound 57 abnormal Pap 57 Hypotension 57 pelvic prolapse 57 mucinous 57 elective PCI 57 hamartomas 57 expiratory flow 57 Chlamydia trachomatis infection 57 magnetic resonance angiography 57 intraductal 57 colorectal liver metastases 57 carcinoid tumor 57 retinal nerve 57 radiotherapy RT 57 cytoreductive nephrectomy 57 CIN3 + 57 percutaneous biopsy 57 neurologic outcomes 57 transvaginal ultrasound 57 hemorrhagic complications 57 diffusion MRI 57 cytoreduction 57 mitomycin C 57 sonographic guidance 57 corrected QT interval 57 cardiac catheterisation 57 tomosynthesis 57 lobular carcinoma 57 flow mediated dilation 57 axillary nodes 57 adnexal mass 57 artery blockages 57 precancerous cervical 57 intensity modulated radiotherapy 57 preoperatively 57 leiomyomas 57 cardiac CT angiography 57 microalbumin 57 rt PA 57 STRIDE PD 57 conventional cytology 57 intravenous bisphosphonates 57 exhaled nitric oxide 57 external beam radiotherapy 57 coronary artery calcification 57 ureteroscopy 57 salivary function 57 endoscopic retrograde cholangiopancreatography 57 brain tumor resection 57 thyroid carcinoma 57 myocardial revascularization 57 atrial ablation 57 RF ablation 57 PET imaging 57 Cystatin C 57 peritoneal carcinomatosis 57 NP CRNs 57 egg retrieval 57 PET CT scans 57 androgen therapy 57 adenotonsillectomy 57 troponins 57 SOMATOM Sensation 57 Coblation 57 RBP4 levels 57 carotid surgery 57 urothelial carcinoma 57 T2 lesions 57 antibody titer 57 peripheral insulin sensitivity 57 Hormonal therapy 57 inflammatory acne 57 color Doppler sonography 56 ovarian hormones 56 pulsed Doppler 56 invasive lobular carcinoma 56 hepatic resection 56 OGG1 56 DVT prophylaxis 56 serum creatinine levels 56 colorectal tumors 56 glaucomatous 56 urinary albumin excretion 56 esophageal motility 56 USPSTF recommends 56 cardiac revascularization 56 cerebral oxygen saturation 56 ICD implantation 56 necrotic core 56 Tonsillectomy 56 antiangiogenic therapy 56 invasive catheter 56 clinically detectable 56 cardioplegic arrest 56 sleeve lobectomy