H W Hill, R M Simpson, G T Swarts, W C Woodward, E C Levy. Show Affiliations »
Abstract
Year: 1911 PMID: 19599550 PMCID: PMC2218583 DOI: 10.2105/ajph.1.1.1
Source DB: PubMed Journal: J Am Public Health Assoc ISSN: 0273-1975