Pleural effusions.
D000681:Amylases / Q000032:analysis; D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D005947:Glucose / Q000032:analysis; D006801:Humans; D006863:Hydrogen-Ion Concentration; D010996:Pleural Effusion / Q000032:analysis / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography
D000681:Amylases; D005947:Glucose