1. ACOG practice bulletin clinical management guidelines for practicing obstetrician-gynecologists No. 130: Prediction and prevention of preterm birth;Obstetrics & Gynecology,2012
2. 17- α -Hydroxyprogesterone Caproate (17OHPC): An opportunity to prevent preterm birth,2013
3. Variation in coverage for progesterone to prevent preterm birth: A survey of Medicaid managed care organizations;Batra;Women’s Health Issues,2017
4. Centers for Medicare and Medicaid Services (CMS). (N.D.-A). The Center for Consumer Information & Insurance Oversight Affordable Care Act Implementation FAQs-Set 12. Baltimore, MD: U.S. Department of Health and Human Services. Available: https://www.cms.gov/CCIIO/Resources/Fact-Sheets-and-FAQs/aca_implementation_faqs12.html#fn7. Accessed: June 9, 2017.
5. Centers for Medicare and Medicaid Services (CMS). (N.D.-B). Questions & answers on ACA section 4106 improving access to preventive services for eligible adults in Medicaid. Available: https://www.medicaid.gov/affordable-care-act/provisions/downloads/4106-faqs-clean.pdf. Accessed: June 9, 2017.