Shivaswamy K, Chikkanna S, Singh J, Gubbari KTN. Study of pulmonary function tests in multitransfused children with beta thalassemia major: an observational study. Int J Contemp Pediatr [Internet]. 2020 Nov. 24 [cited 2025 Nov. 6];7(12):2307-11. Available from: https://www.ijpediatrics.com/index.php/ijcp/article/view/3721