Forty-seventh Regional Committee for Europe: Istanbul, 15–19 September 1997: detailed information on poliomyelitis incidence and immunization in the European Region
Citation
(1997). Forty-seventh Regional Committee for Europe: Istanbul, 15–19 September 1997: detailed information on poliomyelitis incidence and immunization in the European Region. World Health Organization. Regional Office for Europe. https://iris.who.int/handle/10665/346994