1) Lavorini F, Magnan A, Dubus JC, et al. Effect of incorrect use of dry powder inhalers on management of patients with asthma and COPD. Respir Med. 2008; 102(4): 593-604. https://doi.org/10.1016/j.rmed.2007.11.003

2) Melani AS, Bonavia M, Cilenti V, et al. Inhaler mishandling remains common in real life and is associated with reduced disease control [published correction appears in Respir Med. 2012 May;106(5):757. DelDonno, Mario [corrected to Del Donno, Mario]]. Respir Med. 2011; 105(6): 930-938. https://doi.org/10.1016/j.rmed.2011.01.005

3) Inhaler Error Steering Committee, Price D, Bosnic-Anticevich S, et al. Inhaler competence in asthma: common errors, barriers to use and recommended solutions. Respir Med. 2013; 107(1): 37-46. https://doi.org/10.1016/j.rmed.2012.09.017

4) Jardim JR, Nascimento OA. The Importance of Inhaler Adherence to Prevent COPD Exacerbations. Medical Sciences. 2019; 7(4): 54. https://doi.org/10.3390/medsci7040054

5)Morton RW, Elphick HE, Rigby AS, et al. STAAR: a randomised controlled trial of electronic adherence monitoring with reminder alarms and feedback to improve clinical outcomes for children with asthma. Thorax. 2017; 72(4): 347-354. https://doi.org/10.1136/thoraxjnl-2015-208171

6) Chan AH, Stewart AW, Harrison J, Camargo CA Jr, Black PN, Mitchell EA. The effect of an electronic monitoring device with audiovisual reminder function on adherence to inhaled corticosteroids and school attendance in children with asthma: a randomised controlled trial. Lancet Respir Med. 2015; 3(3): 210-219. https://doi.org/10.1016/S2213-2600(15)00008-9

7) Takaku Y, Kurashima K, Ohta C, et al. How many instructions are required to correct inhalation errors in patients with asthma and chronic obstructive pulmonary disease?. Respir Med. 2017; 123: 110-115. https://doi.org/10.1016/j.rmed.2016.12.012