title: Bleeding tendency in patients on cephalosporins.
mesh_terms: D002435:Cefamandole / Q000009:adverse effects*; D002511:Cephalosporins / Q000009:adverse effects*; D006801:Humans; D007020:Hypoprothrombinemias / Q000139:chemically induced* / Q000517:prevention & control; D010837:Vitamin K 1 / Q000627:therapeutic use
chemical_list: D002511:Cephalosporins; D002435:Cefamandole; D010837:Vitamin K 1