TY - GEN AU - Gurvich,E B AU - Milushin,V N TI - [Use of the plaque-forming properties of vaccinia virus for determination of the activity of smallpox vaccine] SN - 0507-4088 PY - 1967///0720 KW - Smallpox Vaccine KW - Vaccinia virus KW - Virus Cultivation N1 - Publication Type: Journal Article ER -