1. Chat-based instant messaging support integrated with brief interventions for smoking cessation: a community-based, pragmatic, cluster-randomised controlled trial 
Man Ping Wang, PhD, Tzu Tsun Luk, BNurs, Yongda Wu, BSc, William H Li, PhD, Derek Y Cheung, PhD, Antonio C Kwong, LLB, Vienna Lai, MPH, Prof Sophia S Chan, PhD, Prof Tai Hing Lam, MD 
The Lancet Digital Health 
Volume 1, Issue 4, Pages e183-e192 (August 2019)
DOI: /S (19)
Copyright © 2019 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license Terms and Conditions

2. Figure
Trial profile
CO=carbon monoxide. ppm=parts per million. QTW=Quit to Win.
The Lancet Digital Health 2019 1, e183-e192DOI: ( /S (19) )
Copyright © 2019 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license Terms and Conditions