L H Lee, K A Lim. Show Affiliations »
Abstract
Entities: Disease
Mesh: See more » AdolescentChildChild, PreschoolHumansImmunizationInfantPoliomyelitis/immunologyPoliomyelitis/prevention & controlPreventive Health ServicesSingapore
Year: 1977 PMID: 905831
Source DB: PubMed Journal: Singapore Med J ISSN: 0037-5675 Impact factor: 1.858