title: Cefoperazone and prothrombin time.
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002438:Cefoperazone / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D011517:Prothrombin Time
chemical_list: D002438:Cefoperazone