1. Contributions of isolated general practitioner maternity units;Cavenagh;Br Med J,1984
2. Department of Health. National Health Service Maternity Statistics, England 1988–99 to 2000–1. London: Department of Health.
3. National service framework for children, young people and maternity services: every child matters;Department of Health,2004
4. Maternity matters: choice, access and continuity of care in a safe service;Department of Health,2007
5. Has medicalisation of childbirth gone too far?;Johanson;BMJ,2002