| Literature DB >> 6780063 |
R F Heller, H S Jacobs, A Vermeulen, J P Deslypere.
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Year: 1981 PMID: 6780063 PMCID: PMC1504277 DOI: 10.1136/bmj.282.6262.438
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623