PANT, P; YADAV, B; KHAN, GM; KOJU, R; GURUNG, R; POKHAREL, B; BEDI, TRS; ADKHARI, RK. Role of tiotropium in chronic obstructive pulmonary disease exacerbation. Journal of Institute of Medicine Nepal, [S. l.], v. 32, n. 2, p. 5–10, 2011. Disponível em: https://nepjol.info./index.php/JIOM/article/view/4937. Acesso em: 27 apr. 2025.