Using WhatsApp and Facebook Online Social Groups for Smoking Relapse Prevention for Recent Quitters: A Pilot Pragmatic Cluster Randomized Controlled Trial

av Cheung, Yee Tak Derek, Chan, Ching Han Helen, Lai, Chi-Keung Jonah, Chan, Wai Fung Vivian, Wang, Man Ping, Li, Ho Cheung William, Chan, Sophia Siu Chee, Lam, Tai-Hing
I publikationen J Med Internet Res (2015)