Enlace original:
https://apps.who.int/iris/handle/10665/47451
Kim-Farley, Robert J
,
Dave, K. H
,
Sokhey, Jotna
,
Mandke, V. B
,
[Poliomyelitis surveillance and vaccine efficacy in Bombay, 1982-87 / R. J. Kim-Farley ... [et al.]]