How can a ban on tobacco sales to minors be effective in changing smoking behaviour among youth? — A realist review

The aim of the study was to understand, from the perspective of youth, how and under which circumstances a ban on tobacco sales to minors can be effective in influencing youth smoking behaviour. We searched Medline, Embase, and PsychINFO in February 2016. A systematic search for studies about a ban on sales to minors and smoking behaviour was performed. Only studies that addressed potential mechanisms were included, resulting in thirty-three...