| Literature DB >> 3147094 |
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Abstract
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Keywords: Biomedical and Behavioral Research; Health Care and Public Health
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Year: 1988 PMID: 3147094 PMCID: PMC1835277 DOI: 10.1136/bmj.297.6663.1608-b
Source DB: PubMed Journal: BMJ ISSN: 0959-8138