Ahmad, K., Muzaffar, U., Bashir, S. and Jabeen, F. (2020) “Effects of letrozole alone or letrozole in combination with low-dose intramuscular injection of human menopausal gonadotropin on ovulation and pregnancy of 150 patients with polycystic ovary syndrome”, International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 10(1), pp. 164–172. doi: 10.18203/2320-1770.ijrcog20205763.