Статья Стрёма, 1960: J. Ström, Is Universal Vaccination Against Pertussis Always Justified? British Medical Journal 2 (1960): 1184–1186.
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Статья Стрёма, 1967: J. Ström, Further Experience of Reactions, Especially of a Cerebral Nature, in Conjunction with Triple Vaccination: A Study Based on Vaccinations in Sweden 1959—65, British Medical Journal 4 (1967): 320–323.