1. American Association of Birth Centers. (2015). American Association of Birth Centers. Retrieved from http://www.birthcenters.org/.
2. American Association of Birth Centers. (2016). Birth center standards. Retrieved from http://www.birthcenters.org/page/Standards.
3. American College of Nurse Midwives. (2002, October). Care for women with postpartum depression: “N*U*R*S*E” approach. Retrieved from http://www.midwife.org/ACNM/files/ccLibraryFiles/Filename/000000000659/Postpartum%20Depression.pdf.
4. American College of Obstetricians and Gynecologists. (May 2015) Screening for Perinatal Depression. Committee Opinion No. 630. Retrieved from http://www.acog.org/Resources-And-Publications/Committee-Opinions/Committee-on-Obstetric-Practice/Screening-for-Perinatal-Depression.
5. American College of Nurse Midwives (Feb, 2014). Comparison of Certified Nurse Midwives, Certified Midwives, and Certified Professional Midwives. Retrieved from http://www.midwife.org/acnm/files/cclibraryfiles/filename/000000001031/cnm%20cm%20cpm%20comparison%20chart%20march%202011.pdf.