review 2015 On-label and off-label drug use in the treatment of endometriosis Fertility and sterility ·doi:10.1016/j.fertnstert.2015.01.006
article 2015 Progesterone Supplementation for Luteal Support in Infertility Treatments: Examining the Prevalence of Use in Infertility and General OB/GYN Clinics ·doi:10.1016/j.fertnstert.2014.12.076