| Literature DB >> 14251614 |
Abstract
Entities:
Keywords: ADOLESCENCE; CHILD; CHINA; EPIDEMIOLOGY; INFANT; POLIOMYELITIS; POLIOVIRUS VACCINE, ORAL; STATISTICS; VACCINATION
Mesh:
Substances:
Year: 1965 PMID: 14251614 DOI: 10.1016/s0033-3506(65)80005-1
Source DB: PubMed Journal: Public Health ISSN: 0033-3506 Impact factor: 2.427