| Abbreviations | Meaning |
 | IPPHS | International Primary Pulmonary Hypertension Study |
 | NPE | Neurogenic Pulmonary Edema; Neuropsychologic Examination; No Palpable Enlargement; Normal Pelvic Examination |
 | OPH | Obliterative Pulmonary Hypertension; Ophthalmia; Organic Phosphate |
 | CNSLD | Chronic Nonspecific Lung Disease |
 | LLZ-TB | Lower Lung Zone Tuberculosis |
 | TCB | Total Cardiopulmonary Bypass Transcatheter Biopsy |
 | PVS | Pulmonary Valvular Stenosis |
 | PHTN | Pulmonary Hypertension |
 | PAH | Pulmonary Artery Hypotension |
 | CLD | Chronic Lung Disease |
 | AIPE | Acute Interstitial Pulmonary Emphysema; Alcoholism Intervention Performance Evaluation |
 | PVP | Pulmonary Venous Pressure |
 | PFP | Pentafluorophenol; Peripheral Facial Paralysis; Plain Film Pelvis [x-ray]; Platelet-free Plasma; Pulmonary Fibroproliferation |
 | TBS | Tracheobronchial Submucosa |
 | PIE | Postinfectious Encephalomyelitis; Preimplantation Embryo; Prosthetic Infectious Endocarditis; Pulmonary Infiltration With Eosinophilia; Pulmonary Interstitial Emphysema |