@ARTICLE{10665-261647, author = {Hutchins, S. S. and Jansen, H. A. and Robertson, S. E. and Evans, P. and Kim-Farley, R. J.}, journal = {Bulletin of the World Health Organization}, title = {Studies of missed opportunities for immunization in developing and industrialized countries.}, volume = {71}, year = {1993}, number = {5}, publisher = {World Health Organization}, type = {Journal / periodical articles}, pages = {549 - 560} }