TY - GEN AU - MILLER,D G AU - OPTON,E M AU - HORSTMANN,D M TI - The 1961 Middletown Oral Poliovirus Vaccine Program. VIII. Immunological effectiveness of the two dose schedule SN - 0044-0086 PY - 1998///1101 KW - Humans KW - Poliomyelitis KW - immunology KW - Poliovirus Vaccine, Oral N1 - Publication Type: Journal Article ER -