Shah Masud Hayder, Shabarna Roy, Neha Karar, Dipanjan Halder, Rijwoana Aktar. To study the difference of serum Vitamin D3 level and calcium profile in childhood multitransfused beta-thalassemia major between children receiving chelation therapy and those not receiving chelation therapy in a tertiary care hospital, Kolkata. Asian J Med Sci [Internet]. 2025 May 1 [cited 2025 Dec. 5];16(5):44-50. Available from: https://nepjol.info/index.php/AJMS/article/view/76995