TY - BOOK AU - Drobyševskaja, A. I. AU - Ključareva, T. E. AU - Svjatuchina, O. A. TI - Changed virulence for monkeys of attenuated Sabin strains following their prolonged passages through the intestinal tract of susceptible children T2 - IVth Scientific conference and International symposium on live vaccine against poliomyelitis VL - [45] PY - 1960///] CY - [Μ. KW - Вирус KW - Вирулентность KW - Изменение при пассировании KW - nlr_sh1 KW - Мк-335 KW - rubbk ER -