| Literature DB >> 5559262 |
A B Anderson, K M Laurence, K Davies, H Campbell, A C Turnbull.
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Year: 1971 PMID: 5559262 DOI: 10.1111/j.1471-0528.1971.tb00305.x
Source DB: PubMed Journal: J Obstet Gynaecol Br Commonw ISSN: 0022-3204