| Literature DB >> 17971538 |
Barbara L Nichols, Charles E Gessert, Catherine R Davis.
Abstract
Mesh:
Year: 2007 PMID: 17971538 PMCID: PMC2089120 DOI: 10.2105/AJPH.2007.121822
Source DB: PubMed Journal: Am J Public Health ISSN: 0090-0036 Impact factor: 9.308