| Literature DB >> 5559269 |
A T Letchworth, R Boardman, C Bristow, J Landon, T Chard.
Abstract
Entities:
Mesh:
Substances:
Year: 1971 PMID: 5559269 DOI: 10.1111/j.1471-0528.1971.tb00312.x
Source DB: PubMed Journal: J Obstet Gynaecol Br Commonw ISSN: 0022-3204