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Abd-Elwahed, H. A.; Aly, T. M.; Ali, A. R.; Khalil, E. M. M. Induction of Ovulation in Women With PCOS Using Letrozole Versus Letrozole Plus Gonadotropin and Its Effect on Spontaneous on Going Pregnancy Rate through Multicenter IVF in Beni-Suef City Using Randomized Controlled Study. Int. J. of Health Sci. 2022, 6, 7653-7662.