Pant, P., Yadav, B., Khan, G., Koju, R., Gurung, R., Pokharel, B., Bedi, T. and Adkhari, R. (2011) “Role of tiotropium in chronic obstructive pulmonary disease exacerbation”, Journal of Institute of Medicine Nepal, 32(2), pp. 5–10. Available at: https://nepjol.info/index.php/JIOM/article/view/4937 (Accessed: 22 December 2024).