H Emerson1. Show Affiliations » 1. College of Physicians and Surgeons, Columbia University, New York, N. Y.
Abstract
Year: 1927 PMID: 18012345 PMCID: PMC1321997 DOI: 10.2105/ajph.17.12.1230
Source DB: PubMed Journal: Am J Public Health (N Y) ISSN: 0271-4353