| Literature DB >> 19316364 |
Albert L Russell, Norman W Littleton, Ernest C Leatherwood, Gunnar E Sydow, John C Greene.
Abstract
Year: 1960 PMID: 19316364 PMCID: PMC1929524
Source DB: PubMed Journal: Public Health Rep ISSN: 0094-6214 Impact factor: 2.792