title: Availability of diphtheria antitoxin through an investigational new drug protocol.
mesh_terms: D004165:Diphtheria / Q000188:drug therapy; D004166:Diphtheria Antitoxin; D004345:Drug Industry; D015507:Drugs, Investigational / Q000600:supply & distribution; D006801:Humans; D014481:United States
chemical_list: D004166:Diphtheria Antitoxin; D015507:Drugs, Investigational