Authors: Valente, F Otten, M Balbina, F Van de Weerdt, R Chezzi, C Eriki, P Van-Dunnen, J Bele, JMO

Citation: F. Valente et al., Massive outbreak of poliomyelitis caused by type-3 wild poliovirus in Angola in 1999, B WHO, 78(3), 2000, pp. 339-346