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
Lopez-Vicente M, Forns J, Esnaola M, Suades-Gonzalez E, Alvarez-Pedrerol M, Robinson O, Julvez J, Garcia-Aymerich J, Sunye J. Physical activity and cognitive trajectories in schoolchildren. Pediatr Exerc Sci. 2016 Aug;91(8):770-5.
Williams RE, Bosnic N, Sweeney CT, Duncan AW, Levine KB, Brogan M, Cook SF. Prevalence of opioid dispensings and concurrent gastrointestinal medications in Quebec. Pain Res Manag. 2008;13(5):395-400.