TY - GEN AU - SABIN,A B TI - Present status of attenuated live-virus poliomyelitis vaccine SN - 0002-9955 PY - 2002///0501 KW - Poliomyelitis KW - immunology KW - Vaccines, Attenuated KW - Viral Vaccines N1 - Publication Type: Journal Article UR - https://doi.org/10.1001/jama.1956.02970350005002 ER -