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CORRIGENDUM. WER 1985, 60, No. 37, p. 285: EXPANDED PROGRAMME ON IMMUNIZATION Reappraisal of early OPV and DPT immunization= RECTIFICATIF: REH 1985, 60, N° 37, p. 285: PROGRAMME ÉLARGI DE VACCINATION Réévaluation des vaccinations précoces VPO et DTC