TY - GEN AU - Smorodintsev,A A TI - [Attenuated influenza vaccine and prospects for its perfection] SN - 0012-0219 PY - 1971///1106 KW - Adult KW - Child, Preschool KW - Humans KW - Immunity, Active KW - Infant KW - Influenza Vaccines KW - Influenza, Human KW - prevention & control KW - Vaccination N1 - Publication Type: Journal Article ER -