TY - GEN AU - CHUMAKOV,M P TI - The effect of mass peroral immunisation by live vaccines from Sabin strains on the epidemiological process of poliomyelitis SN - 0022-1732 PY - 1998///1101 KW - Emotions KW - Humans KW - Mass Vaccination KW - Poliomyelitis KW - immunology KW - Sprains and Strains KW - Vaccines, Attenuated N1 - Publication Type: Journal Article ER -