Британская педиатрическая ассоциация и Канадский национальный консультационный комитет по иммунизации: J. D. Cherry, Pertussis Vaccine Encephalopathy: It Is Time to Recognize It as the Myth That It Is, Journal of the American Medical Association 263 (1990): 1679–1680; Canadian National Advisory Committee on Immunization, Minister of National Health and Welfare, National Advisory Committee on Immunization, Canadian Immunization Guide, 3rd ed. (Ottawa, Canada: Minister of National Health and Welfare, Health Protection Branch, 1989), 78–83.
