Effectiveness of WhatsApp online group discussion for smoking relapse prevention: protocol for a pragmatic randomized controlled trial

por Cheung, Yee Tak Derek, Chan, Ching Han Helen, Ho, Kin Sang, Fok, Wai‐Yin Patrick, Conway, Mike, Wong, Carlos King Ho, Li, William Ho Cheung, Wang, Man Ping, Lam, Tai Hing
Publicado 2020