| Literature DB >> 8257880 |
Abstract
Keywords: Biomedical and Behavioral Research; Cochrane Center (Baltimore); European Medicines Evaluation Agency; National Health Service; National Institutes of Health
Mesh:
Year: 1993 PMID: 8257880 PMCID: PMC1679442 DOI: 10.1136/bmj.307.6915.1296
Source DB: PubMed Journal: BMJ ISSN: 0959-8138