title: Gastrointestinal bleeding due to vitamin K deficiency in patients on parenteral cefamandole.
mesh_terms: D001419:Bacteria / Q000187:drug effects; D002435:Cefamandole / Q000009:adverse effects*; D002511:Cephalosporins / Q000009:adverse effects*; D003864:Depression, Chemical; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D007422:Intestines / Q000382:microbiology; D014812:Vitamin K / Q000096:biosynthesis; D014813:Vitamin K Deficiency / Q000139:chemically induced / Q000150:complications*
chemical_list: D002511:Cephalosporins; D014812:Vitamin K; D002435:Cefamandole