G Kalla. Show Affiliations »
Abstract
Mesh: See more » Correspondence as TopicPeer Review, Research/methodsPeriodicals as Topic
Year: 1994 PMID: 8086923 PMCID: PMC2542741 DOI: 10.1136/bmj.309.6953.539
Source DB: PubMed Journal: BMJ ISSN: 0959-8138