Mausumi Sen, Sulagna Das, Santanu Sen, Nabanita Baidya Biswas, Tanmoy Naskar, Swapan Kumar Mishra and Swati Bhattacharyya 2024. A cross-sectional study on the association of level of Vitamin D with severity of fibromyalgia syndrome in a tertiary care hospital, Kolkata. Asian Journal of Medical Sciences. 15, 9 (Aug. 2024), 52–56. DOI:https://doi.org/10.3126/ajms.v15i9.67653.