| Abbreviations | Meaning |
 | PDA | Pulmonary Disease Anemia |
| BR | Brain; Breech; Bregma; Bridge; Bromine; Bronchitis; Brown; Brucella; Brucellosis |
| TLV | Threshold Limit Value; Tidal Liquid Ventilation; T-lymphotropic Virus; Total Lung Volume |
| LC | Lung Cell |
| BALT | Bronchus-associated Lymphoid Tissue |
| NHLBI | National Heart, Lung And Blood Institute |
| RMLB | Right Middle Lobe Bronchus |
| LHFA | Lung Hageman Factor Activator |
| HAPVC | Hemi-anomalous Pulmonary Venous Connection |
| PVC | Pulmonary Venous Capillaries |
| UKNCSPAIVS | United Kingdom National Collaborative Study Of Pulmonary Atresia With Intact Ventricular Septum |
| ALCAPA | Anomalous Origin Of Left Coronary Artery From Pulmonary Artery |
| TBB | Transbronchial Biopsy |
| AECB | Acute Exacerbation Of Chronic Bronchitis |
| PEM | Pulmonary Endothelial Membrane |
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