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Uzma Afreen, Mubushra Samina, Shaima Sultana Memon, Hafiz Syed Muhammad Osama Jafri, Sumaira Riffat, Saba Abrar. Relationship Between Serum 25-Hydroxy Vitamin D Level and Menstrual Cycle Irregularity: A Cross-Sectional Study. Pakistan Journal of Medical & Health Sciences [Internet]. 2023 Jan. 9 [cited 2024 Dec. 22];16(11):511. Available from: https://pjmhsonline.com/index.php/pjmhs/article/view/3455