| Literature DB >> 1888941 |
C J Ronalds, F Ward, L Streether, J Anderson, A Murray, D J Jeffries, W Nelson.
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Year: 1991 PMID: 1888941 PMCID: PMC1670438 DOI: 10.1136/bmj.303.6797.310-a
Source DB: PubMed Journal: BMJ ISSN: 0959-8138