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Effect of exogenous melatonin on the thickness of (a) granulose cell layers, and theca cell layers of Letrozole-induced female PCOS rats. Histogram represents Mean ± SE; N = 6. CON = Control, PCOS = Polycystic ovary syndrome, MEL = Melatonin. PCOS vs CONT. PCOS vs PCOS + MEL, ***P ≤ 0.001.
