{"authors":"Litman L, Rosen Z, Spierer D, Weinberger-Litman S, Goldschein A, Robinson J","citation":"J Med Internet Res 2015;17(8):e195","title":"Mobile Exercise Apps and Increased Leisure Time Exercise Activity: A Moderated Mediation Analysis of the Role of Self-Efficacy and Barriers","url":"https:\/\/www.jmir.org\/2015\/8\/e195","doi":"10.2196\/jmir.4142","pmid":"26276227","pmcid":"4642397","pubid":"jmir_v17i8e195"}