SMS-based integrated smoking cessation
and alcohol intervention for smoking cessation in young
people’ randomised controlled trial (Trial registration:
Current Controlled Trials ISRCTN02427446). The study
was approved by the Ethics Committee of the Philosophy
Faculty of the University of Zurich, Switzerland (date of
approval: 13 August 2014). The study procedures were
carried out in accordance with the Declaration of Helsinki.
All subjects were informed about the study and provided
informed consent prior to participation.