Dey, R., Baidya, D. and Karmakar, B.C. 2024. A study on differences in peak expiratory flow rate among school children of age 7-12 years at different altitudes of Darjeeling and Purulia district of West Bengal. International Journal of Contemporary Pediatrics. 12, 1 (Dec. 2024), 66–72. DOI:https://doi.org/10.18203/2349-3291.ijcp20243856.