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2. Safer childbirth?: a critical history of maternity care;Tew,1998
3. Midwifery and the medicalization of childbirth: comparative perspectives;Van Teijlingen,2000
4. Midwives and medical men: a history of the struggle for the control of childbirth;Donnison,1988
5. Immigrant and non-immigrant women's experiences of maternity care: a systematic and comparative review of studies in five countries;Small;BMC Pregnancy Childbirth,2014