Related by context. Frequent words. (Click for all words.) 52 respiratory 42 pulmonary 40 congestive heart failure 39 circulatory 38 bronchial 38 emphysema 38 myocardial ischemia 38 pulmonary edema 38 acute 37 pulmonary disease 37 pneumonia 37 respiratory distress 37 chronic obstructive pulmonary 37 bronchial pneumonia 37 lung 36 bradycardia 36 respiratory distress syndrome 36 aspiration pneumonia 36 pulmonary fibrosis 35 airway obstruction 35 pulmonary hypertension 35 arrhythmia 34 asthma bronchitis 34 cardiopulmonary 34 inhalation 34 breathlessness 33 dysfunction 33 acute respiratory distress 33 respiratory tract 33 bronchial asthma 33 pulmonary diseases 33 cardiac arrhythmia 32 acute kidney 32 sinus 32 bloodstream infection 32 respiratory illness 32 deep vein thrombosis 32 renal failure 32 thrombosis 32 myocarditis 32 breathing difficulties 32 respiratory disorders 32 chronic pulmonary 32 lung ailments 32 dehydration 32 lung infection 32 lung infections 31 respiratory ailments 31 obstructive sleep apnea 31 septic shock 31 skin ulcers 31 acute respiratory 31 stomach ulcer 31 cerebrovascular disease 31 cardiac arrest 31 arteriosclerosis 31 lung diseases 31 lungs 31 kidney failure 31 chronic lung 31 asthmatic 31 asthma 31 acute bronchitis 31 pattern 31 failure 31 cardio respiratory 31 difficulty breathing 31 airway 31 gastrointestinal 31 cardiac 31 lung disease 30 obstructive sleep apnea OSA 30 chronic respiratory 30 ventilation 30 sleep apnea 30 neurological 30 sepsis 30 ARDS 29 croup 29 syncope 29 kidney dysfunction 29 Respiratory 29 eye irritation 29 asthma allergies 29 angina 29 bacterial pneumonia 29 dizziness nausea 29 respiratory diseases 29 patterns 29 asthma emphysema 29 respiratory illnesses 29 chronic cough 28 systemic 28 chronic bronchitis 28 digestive 28 shortness 28 Inability 28 rhinitis 28 vascular 28 chest tightness 28 gastro intestinal