Статья Мадсена: T. Madsen, Vaccination Against Whooping Cough, Journal of the American Medical Association 101 (1933): 187–188.
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Статья Верна и Гарроу: J. Werne and I. Garrow, Fatal Anaphylactic Shock: Occurrence in Identical Twins Following Second Injection of Diphtheria Toxoid and Pertussis Antigen, Journal of the American Medical Association 131 (1946): 730–735.
