Kumar, Y., Kotwal, N., Singh, Y., Upreti, V., Somani, S., & Hari Kumar, K. V. S. (2018). A randomized, controlled trial comparing the metformin, oral contraceptive pills and their combination in patients with polycystic ovarian syndrome. J Family Med Prim Care.

Kumar, Yogesh, Narendra Kotwal, Yashpal Singh, Vimal Upreti, Shrikant Somani, and K. V. S. Hari Kumar. "A Randomized, Controlled Trial Comparing the Metformin, Oral Contraceptive Pills and Their Combination in Patients With Polycystic Ovarian Syndrome." J Family Med Prim Care 2018.

Kumar, Yogesh, et al. "A Randomized, Controlled Trial Comparing the Metformin, Oral Contraceptive Pills and Their Combination in Patients With Polycystic Ovarian Syndrome." J Family Med Prim Care 2018.