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 Sep. 19];16(11):511. Available from: https://mail.pjmhsonline.com/index.php/pjmhs/article/view/3455