Patel, M., Pilcher, J., Travers, J., Perrin, K., Shaw, D., Black, P., …Beasley, R. (2013). Use of metered-dose inhaler electronic monitoring in a real-world asthma randomized controlled trial. Journal of Allergy and Clinical Immunology: In Practice, 1(1), doi:10.1016/j.jaip.2012.08.004