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CE95.R14: expanded program on immunization in the Americas
(Washington, D.C; Pan American Sanitary Bureau, 1985)
CE95.R16: IV expanded program on immunization in the Americas
(Washington, D.C; Pan American Sanitary Bureau, 1985)
CE95.R14: programa ampliado de inmunización en las Américas
(Washington, D.C; Oficina Sanitaria Panamericana, 1985)