| Abbreviations | Meaning |
 | DL | Lung Diffusion [capacity] |
 | RPE | Rate Of Perceived Exertion; Recurrent Pulmonary Embolism; Retinal Pigment Epithelium; Ribulose 5-phosphate 3-epimerase |
 | PASVR | Pulmonary Anomalous Superior Venous Return |
 | MPAP | Mean Pulmonary Arterial Pressure |
 | BPC | Bronchoprovocation Challenge |
 | FFB | Fat-free Body; Flexible Fiberoptic Bronchoscopy |
 | PAG | Periaqueductal Gray [matter]; Polyacrylamide Gel; Pregnancy-associated Globulin; Proliferation-associated Gene; Proximal Anastomosis Graft; Pulmonary Arteriography |
 | ALCAPA | Anomalous Origin Of Left Coronary Artery From Pulmonary Artery |
 | SAPALDIA | Swiss Study Of Air Pollution And Lung Diseases In Adults |
 | CPE | Cardiac Pulmonary Edema |
 | UKNCSPAIVS | United Kingdom National Collaborative Study Of Pulmonary Atresia With Intact Ventricular Septum |
 | PCP | Pulmonary Capillary Pressure |
 | LHS | Lung Heart Study |
 | PIPE | Persistent Interstitial Pulmonary Emphysema |
 | FOB | Fiberoptic Bronchoscopy |