BWHO1955-15-LepineIPV
BWHO1955-15-LepineIPV.jpg
Title page of paper by Pierre Lépine of Pasteur Institute on polio vaccines, 1955 (P. Lépine, "Prophylaxie de la Poliomyélite," Bulletin of the World Health Organization 13 (1955), p. 447)
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