T. H. P. Vo, D. T. A. Phan, P. B. N. Nguyen, T. K. C. Ngo, V. Q. Le, and T. H. Phan, “Assessment of knowledge, attitudes and practical skills in using inhalers for asthmatic outpatients”, HUEJMP, vol. 13, no. 2, pp. 127–135, Apr. 2023.