1. ACNM. 2018. Midwives: the answer to the US maternity care provider shortage. Retrieved fromhttp://www.midwife.org/acnm/files/ccLibraryFiles/Filename/000000005828/DetailedTPsonMaternityCareWorkforce.pdf. Accessed 02/28/2019.
2. AIUSA. 2010. Deadly delivery: the maternal health care crisis in the USA. From Amnesty International Secretariat Peter Benenson House.
3. Midwifery and obstetrics: twenty years of collaborative academic practice;Angelini;Obstetrics and Gynecologic Clinics of North America,2012
4. Collaboration in maternity care is achievable and practical;Beasley;Aust. N. Z. J. Obstet. Gynaecol.,2012
5. A midwifery model of woman-centred childbirth care in Swedish and Icelandic settings;Berg;Sex. Reprod. Healthc.,2012