[A study of antibiotic prophylaxis in cardiac surgery].
D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D001424:Bacterial Infections / Q000517:prevention & control*; D006348:Cardiac Surgical Procedures; D002506:Cephalexin / Q000031:analogs & derivatives / Q000627:therapeutic use; D006331:Heart Diseases / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D011292:Premedication; D013530:Surgical Wound Infection / Q000517:prevention & control
D000900:Anti-Bacterial Agents; C028352:cefems; D002506:Cephalexin