"A prospective randomized trial comparing clomiphene citrate with metformin or a combination of both for ovulation induction in poly cystic ovarian Syndrome", Tuj-hlth, م 39, عدد 4, سبتمبر 2018, تاريخ الوصول: أكتوبر 26, 2026. موجود في: https://journal.latakia-univ.edu.sy/index.php/hlthscnc/article/view/3961