Hayes AF, Rockwood NJ. Regression-based statistical mediation and moderation analysis in clinical research: observations, recommendations, and implementation. Behav Res Ther. 2017 Nov;98:39-57. doi: 10.1016/j.brat.2016.11.001
Lincourt W, Stanford RH, Gilsenan A, DiBenedetti D, Ortega H. Assessing primary care physician`s beliefs and attitudes of asthma exacerbation treatment and follow-up. Open Respir Med J. 2010 Feb 22;4:9-14.