| Literature DB >> 5558843 |
W J Henderson, C A Joslin, A C Turnbull, K Griffiths.
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Year: 1971 PMID: 5558843 DOI: 10.1111/j.1471-0528.1971.tb00267.x
Source DB: PubMed Journal: J Obstet Gynaecol Br Commonw ISSN: 0022-3204