| Literature DB >> 2563952 |
V Doherty1, D G Sylvester, C T Kennedy, S G Harvey, J G Calthrop, J R Gibson.
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Year: 1989 PMID: 2563952 PMCID: PMC1835428 DOI: 10.1136/bmj.298.6666.96
Source DB: PubMed Journal: BMJ ISSN: 0959-8138