Khattak, Madiha, et al. “LUTEINIZING HORMONE TO FOLLICLE STIMULATING HORMONE RATIO IN PATIENTS WITH POLYCYSTIC OVARY SYNDROME”. Journal of Ayub Medical College Abbottabad, vol. 32, no. 2, Apr. 2020, pp. 255-8, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/7458.