| Literature DB >> 2014872 |
Abstract
Keywords: Empirical Approach; Health Care and Public Health
Mesh:
Year: 1991 PMID: 2014872 PMCID: PMC1405095 DOI: 10.2105/ajph.81.5.650
Source DB: PubMed Journal: Am J Public Health ISSN: 0090-0036 Impact factor: 9.308