| Literature DB >> 11157535 |
F Crawford1, R Hart, S E Bell-Syer, D J Torgerson, P Young, I Russell.
Abstract
Entities:
Mesh:
Substances:
Year: 2001 PMID: 11157535 PMCID: PMC1119529 DOI: 10.1136/bmj.322.7281.288
Source DB: PubMed Journal: BMJ ISSN: 0959-8138