Saima Ashraf, Samina Dar, Asad Shabbir, Muhammad Awais, Anam Ziarat, and Ayesha Ijaz. “Association of Serum Calcium and Vitamin D Levels With Premenstrual Syndrome in Women from District Sialkot: A Case–Control Study”. Journal of Health, Wellness and Community Research 3, no. 10 (August 13, 2025): e704. Accessed December 9, 2025. https://www.jhwcr.com/index.php/jhwcr/article/view/704.