1. FDA Update: August 2018.https://lab.express‐scripts.com/lab/insights/industry‐updates/fda‐update‐august‐2018. Accessed August 15 2019.
2. https://www.accessdata.fda.gov/drugsatfda_docs/label/2018/021945s012lbl.pdf. Accessed August 15 2019.
3. Progesterone is not the same as 17α-hydroxyprogesterone caproate: implications for obstetrical practice
4. Progestogen for preventing miscarriage in women with recurrent miscarriage of unclear etiology;Haas DM;Cochrane Database Syst Rev,2018
5. 17‐OHPC to prevent recurrent preterm birth in singleton gestations (PROLONG Study): a multicenter, international, randomized double‐blind trial;Blackwell SC;Am J Perinatol,2019