IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-11-38050 Original Research Paper A Comparative study of efficacy of Letrozole Versus Clomiphene Citrate in ovulation induction in patients with Polycystic Ovarian Syndrome Roshni Alam Dr. Dr. [Prof.] Abha Rani Sinha Dr. November 2021 10 11 01 02