Dal Negro, Roberto W., and Massimiliano Povero. “Acceptability and Preference of Three Inhalation Devices Assessed by the Handling Questionnaire in Asthma and COPD Patients”. Multidisciplinary Respiratory Medicine 11, no. 1 (February 10, 2016). Accessed April 25, 2026. https://mrmjournal.org/index.php/mrm/article/view/268.