title: Erythema nodosum and psittacosis pneumonia. A report of an unusual clinical association.
mesh_terms: D000328:Adult; D003168:Complement Fixation Tests; D004893:Erythema Nodosum / Q000209:etiology*; D005260:Female; D006801:Humans; D009956:Psittacosis / Q000150:complications* / Q000188:drug therapy; D013752:Tetracycline / Q000627:therapeutic use
chemical_list: D013752:Tetracycline