A A Romenskiĭ, G S Zhukovskiĭ, S A Leonov. Show Affiliations »
Abstract
Mesh: See more » MethodsPublic HealthResearch DesignSampling StudiesStatistics as TopicUSSR
Year: 1973 PMID: 4776721
Source DB: PubMed Journal: Sov Zdravookhr ISSN: 0038-5239