Related by context. Frequent words. (Click for all words.) 58 caesarean sections 57 vaginal deliveries 57 caesarean delivery 56 postoperative complications 56 vaginal births 56 cesareans 55 Caesarean delivery 54 caesareans 54 Caesareans 54 congenital abnormalities 54 preterm births 53 premature menopause 53 preterm babies 53 bariatric procedures 53 ultrasound examinations 53 cesarean delivery 53 comorbid conditions 53 folate intake 53 preterm delivery 52 childbirths 52 asthma exacerbations 52 pregnancies 52 congenital malformations 52 pneumococcal vaccination 52 oophorectomy 51 cerebrovascular events 51 cesarean sections 51 screening colonoscopy 51 oral contraceptive pill 51 vitamin D supplementation 51 calcium supplementation 51 neonatal mortality 51 nonadherence 51 unexplained infertility 51 cardiorespiratory fitness 51 sentinel node biopsy 51 coronary revascularization 51 premenopausal breast cancer 51 thrombolytic therapy 51 PSA screening 50 VUR 50 warfarin therapy 50 cervical screening 50 embryo transfers 50 thrombotic events 50 generalizability 50 low birthweight babies 50 anticoagulation therapy 50 longitudinal studies 50 uncontrolled asthma 50 comorbidity 50 preterm birth 50 neural tube defect 50 antibiotic prescribing 49 vitamin supplementation 49 polycystic ovary syndrome 49 Oral contraceptives 49 vitamin D insufficiency 49 childbearing 49 comorbidities 49 BRCA2 mutations 49 BRCA mutations 49 prostate biopsy 49 serum uric acid 49 birthweight 49 cervical smear 49 IVF cycles 49 lipid lowering drugs 49 osteoporotic fractures 49 mortality morbidity 49 cerebral infarction 49 hereditary breast cancer 49 Vitamin D supplements 49 neuropsychiatric symptoms 49 RLS symptoms 49 vertebral fracture 49 Pregnancies 48 MMR vaccination 48 urinary symptoms 48 cystectomy 48 postmenopausal breast cancer 48 CMV infection 48 undergoing IVF 48 fasting glucose levels 48 confounding variables 48 Cardiovascular Risk 48 caesarean 48 hemorrhagic strokes 48 births 48 colorectal cancer CRC 48 myocardial infarctions 48 IVF treatment 48 fetal distress 48 screening mammography 48 amenorrhea 48 folic acid supplementation 48 virologic failure 48 ambiguous genitalia 48 chromosomal abnormalities 48 mammographies 48 uterine rupture