1. Pain and its Relief in Childbirth — The Results of a National Survey Conducted by the National Birthday Trust;Chamberlain,1993
2. The quality of routinely collected maternity data;Cleary;British Journal of Obstetrics and Gynaecology,1994
3. Confidential Enquiry into Stillbirths and Deaths in Infancy, 1997. 4th Annual Report, Maternal and Child Health Research Consortium, London.
4. Confidential Enquiry into Stillbirths and Deaths in Infancy, 1998. 5th Annual Report, Maternal and Child Health Research Consortium, London.
5. Confidential Enquiry into Stillbirths and Deaths in Infancy, 1999. 6th Annual Report, Maternal and Child Health Research Consortium, London.