Penicillin--the duration of its activity in blood clots.
D001777:Blood Coagulation; D006801:Humans; D007273:Injections, Intramuscular; D010400:Penicillin G / Q000032:analysis / Q000097:blood*; D010402:Penicillin G Procaine / Q000032:analysis / Q000097:blood*; D011292:Premedication; D012463:Saliva / Q000032:analysis; D013530:Surgical Wound Infection / Q000517:prevention & control; D014081:Tooth Extraction
D010402:Penicillin G Procaine; D010400:Penicillin G