| Abbreviations | Meaning |
 | RLA | Ranchos De Los Amigos [Cognitive Functioning Scale]; Right Lung Apices |
 | PPH | Persistent Pulmonary Hypertension |
 | LC | Lung Cell |
 | LVRS | Lung Volume Reduction Surgery |
 | IPH | Idiopathic Pulmonary Hemosiderosis |
 | IPRL | Isolated Perfused Rat Liver Or Lung |
 | NHLBITS | National Heart, Lung And Blood Institute Twin Study |
 | PAHVC | Pulmonary Alveolar Hypoxic Vasoconstrictor |
 | PA-PV | Pulmonary Arterial Pressure-pulmonary Venous Pressure |
 | RU-1 | Human Embryonic Lung Fibroblasts |
 | PFS | Patellofemoral Syndrome; Primary Fibromyalgia Syndrome; Protein-free Supernatant; Pulmonary Function Score; Pulsatile Flow System |
 | PDA | Pulmonary Disease Anemia |
 | PVG | Periventricular Gray Matter; Pulmonary Valve Gradient |
 | PCW | Pericanalicular Web; Personal Care Worker; Primary Capillary Wedge; Pulmonary Capillary Wedge; Purified Cell Walls |
 | HLM | Heart-lung Machine |