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Sidra Jabeen, Humaira Fayyaz Khan, Samia Sarwar, Mehvish Ashfaq, Ayesha Zafar, Ummara Aslam, Shmyla Hamid. Protective Effect of Vitamin-D Supplementation in Patients of Acute Coronary Syndrome During COVID-19 Pandemic. Pakistan Journal of Medical & Health Sciences 2022, 16, 1053.