TY - GEN AU - PLACIDO DE SOUSA,C AU - PINTO,M R TI - [Isolation of various poliomyelitis virus strains in Angola] SN - 0037-9026 PY - 2003///0501 KW - Angola KW - Emotions KW - Humans KW - Poliomyelitis KW - Poliovirus KW - Sprains and Strains N1 - Publication Type: Journal Article ER -