title: Hypoprothrombinemia due to cefoperazone.
mesh_terms: D000368:Aged; D002438:Cefoperazone / Q000009:adverse effects*; D006801:Humans; D007020:Hypoprothrombinemias / Q000139:chemically induced* / Q000188:drug therapy; D008297:Male; D014812:Vitamin K / Q000627:therapeutic use
chemical_list: D014812:Vitamin K; D002438:Cefoperazone