A theory-led systematic review of reviews examining barriers and facilitators to clinical behaviour change by PCPs in high-income primary care contexts using PRISMA. 
PRISMA
Embase, MEDLINE, PsychInfo, HMIC and Cochrane Library were searched. 
Embase
Embase, MEDLINE, PsychInfo, HMIC and Cochrane Library were searched. 
MEDLINE
Embase, MEDLINE, PsychInfo, HMIC and Cochrane Library were searched. 
PsychInfo
Embase, MEDLINE, PsychInfo, HMIC and Cochrane Library were searched. 
HMIC
Embase, MEDLINE, PsychInfo, HMIC and Cochrane Library were searched. 
Cochrane Library