Text messaging as an addition to an internet based smoking cessation intervention: a randomized controlled trial
Olav Nilsen, Silje Camilla Wangberg, Inger Torhild Gram
A Norwegian E-Health program: predictors for successful smoking cessation among more than 4,000 men and women
Dillys Larbi, Konstantinos Antypas, Inger Torhild Gram