Jha, T., Sahai, A. K., Sarkar, M., Kaundal, P. K., Bhardwaj, P., & Sharma, I. (2017). Assessment of inhalation technique and predictors of incorrect performance among patients of chronic obstructive pulmonary disease and asthma. International Journal of Basic & Clinical Pharmacology, 5(4), 1598–1605. https://doi.org/10.18203/2319-2003.ijbcp20162479