September 2019. Retrieved 13 September 2019. Wilfredo Gutiérrez (2011). "Poliomielitis paralítica causada por la vacuna oral sabin ¿tiempo de cambiar de vacuna...
9 KB (865 words) - 07:19, 30 June 2024
continued in the male line. Since early childhood, Kobozev was ill with poliomielitis. Since the 1920s, he had had a number of serious diseases, including...
26 KB (3,141 words) - 10:55, 24 July 2024