Diphtheria antitoxin titres following a recall dose of diphtheria toxoid; a three-year study.
D004165:Diphtheria; D004166:Diphtheria Antitoxin; D004168:Diphtheria Toxoid; D006801:Humans; D011939:Mental Recall
D004166:Diphtheria Antitoxin; D004168:Diphtheria Toxoid
DIPHTHERIA