Alkaf, Syifa, Aerul Chakra, Usman Said, and Irsan Saleh. 2016. “Progesterone Receptor Gene Polymorphism Promoter Region +331G A Increases Risk of Endometriosis”. Indonesian Journal of Obstetrics and Gynecology 4 (1):52-56. https://doi.org/10.32771/inajog.v4i1.73.