Intervention
Cancer
CANCER
Participants allocated to the intervention group received the intervention program consisting of one to two personalized text messages a day for three months.Control group participants received non-personalised text message developed by the National Cancer Institute (NCI); this intervention was based on well-established cognitive-behavioural cessation approaches and contained 91 messages. Participants received approximately one message a day for three months. The text messages provided encouragement, practical advice to help maintain cessation, and information on the health effects of smoking. The details of the control group can be found elsewhere [