Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleCongress Information.PublicationJournal of Obstetrics & Gynaecology Research, 1980, Vol 6, Issue 1, p99ISSN1341-8076Publication typeArticleDOI10.1111/j.1447-0756.1980.tb00502.x