title: Pleural effusion: pathophysiology and clinical features.
mesh_terms: D001707:Biopsy, Needle; D006801:Humans; D001239:Inhalation; D010994:Pleura / Q000473:pathology; D010996:Pleural Effusion / Q000032:analysis / Q000175:diagnosis* / Q000201:enzymology / Q000503:physiopathology