Related by context. Frequent words. (Click for all words.) 61 bronchitis 57 pneumonia 54 asthma 53 sinusitis 53 lung infection 52 emphysema 52 chronic bronchitis 51 respiratory illness 51 respiratory infections 51 chronic lung 51 sinus infections 51 respiratory infection 51 hospitalizations 50 COPD 50 lung cancer 50 respiratory ailments 50 respiratory 50 respiratory illnesses 49 ear infection 49 gastroenteritis 49 illness 48 lung disease 48 pancreatitis 48 diverticulitis 48 pulmonary embolism 48 hospitalization 47 tonsillitis 47 bacterial infection 47 lung infections 47 sore throat 47 congestive heart failure 47 viral infection 47 colds 47 acid reflux 47 respiratory diseases 46 gastrointestinal bleeding 46 exacerbations 46 migraines 46 respiratory symptoms 46 carbon monoxide poisoning 46 sudden cardiac death 46 deep vein thrombosis 45 Asthma 45 chronic respiratory 45 thyroid cancer 45 illnesses 45 sarcoidosis 45 lung diseases 45 breathing difficulties 45 gallstones 45 chronic obstructive pulmonary 45 bladder cancer 45 hip fracture 45 irregular heartbeat 45 ear infections 45 arrhythmia 44 kidney failure 44 diarrhea 44 sinus infection 44 appendicitis 44 atrial fibrillation 44 hypertension 44 migraine headaches 44 acute kidney 44 allergy symptoms 44 asthmatic 44 viral meningitis 44 chicken pox 44 strep throat 44 laryngitis 44 stomach ulcers 44 allergies 44 respiratory tract infections 43 pulmonary disease 43 hospitalized 43 diarrhea fever 43 pancreatic cancer 43 upper respiratory 43 chest pains 43 colitis 43 GERD 43 flulike symptoms 43 allergic rhinitis 43 severe diarrhea 43 pulmonary fibrosis 42 liver disease 42 passive smoking 42 renal failure 42 urinary tract infection 42 stomach ailment 42 gastrointestinal illness 42 asthmatics 42 sore throats 42 hay fever 42 disease COPD 42 VTE 42 chronic illness 42 acute myocardial infarction 42 lung 42 ulcerative colitis 42 blood clots