| Literature DB >> 5427604 |
D G Campbell, J B Brown, D W Fortune, R Pepperell, N A Beischer.
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Year: 1970 PMID: 5427604 DOI: 10.1111/j.1471-0528.1970.tb03542.x
Source DB: PubMed Journal: J Obstet Gynaecol Br Commonw ISSN: 0022-3204