@ARTICLE{10665-261133, author = {Metselaar, D. and McDonald, K. and Gemert, W. and van Rens, M. M. and Muller, A. S.}, journal = {Bulletin of the World Health Organization}, title = {Poliomyelitis: epidemiology and prophylaxis}, volume = {55}, year = {1977}, number = {6}, type = {Journal / periodical articles}, pages = {755 - 759} }