| Literature DB >> 3126923 |
R P Walt1, T K Daneshmend, I W Fellows, P J Toghill.
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Year: 1988 PMID: 3126923 PMCID: PMC2545238 DOI: 10.1136/bmj.296.6622.607
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623