| Literature DB >> 7804037 |
Abstract
Keywords: Biomedical and Behavioral Research; British Journal of Obstetrics and Gynaecology; International Committee of Medical Journal Editors
Mesh:
Year: 1994 PMID: 7804037 PMCID: PMC2541639 DOI: 10.1136/bmj.309.6967.1456
Source DB: PubMed Journal: BMJ ISSN: 0959-8138