R Hull1. Show Affiliations » 1. Institute of General Practice, Free University, 1007 MC Amsterdam.
Abstract
Year: 1987 PMID: 20742878 PMCID: PMC1247223 DOI: 10.1136/bmj.295.6594.376
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623