Singh , V., Kurrey , V., Khandwal , O., & Phuljhele , S. (2014). Evaluation of Lung Function by Spirometry in 12-14 yrs Adolescents in schools of Raipur city Chhattisgarh. International Journal of Medical Science Research and Practice, 1(1), 9–15. Retrieved from https://ijmsrp.isroset.org/index.php/j/article/view/3