255
Participants
Start Date
September 30, 2013
Primary Completion Date
May 31, 2014
Study Completion Date
October 31, 2014
Multicomponent intervention
Motivational interview (50 minutes), on-line self-help material, support e-mail, group therapy, and second motivational interview (20 minutes)
Brief advice
Brief advice (5-10minutes) and a self-help pamphlet
Miren Idoia Pardavila Belio, Pamplona
University of Navarra
OTHER
Clinica Universidad de Navarra, Universidad de Navarra
OTHER