Authors' replyBJOG: An International Journal of Obstetrics & Gynaecology
Volume 97, Issue 3, March 1990, Page: 279, Kevin P. Hanretty, James P. Neilson and Martin J. Whittle
Version of Record online : 19 AUG 2005, DOI: 10.1111/j.1471-0528.1990.tb01801.x