TY - GEN AU - BRANCATO,P AU - PICCIOTTO,L AU - POSTERARO,G TI - [Frequency and antibody titers of three types of poliomyelitis in the population of Naples] SN - 0300-9904 PY - 2002///0501 KW - Humans KW - Immunologic Tests KW - Poliomyelitis KW - immunology N1 - Publication Type: Journal Article ER -