| Literature DB >> 7388476 |
M I Whitehead, A M Mander, K Hertogs, R M Williams, K W Pettingale.
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Year: 1980 PMID: 7388476 PMCID: PMC1601482 DOI: 10.1136/bmj.280.6225.1221
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447