Keurhorst M, van de Glind I, Bitarello do Amaral-Sabadini M, Anderson P, Kaner E, Newbury-Birch D, Braspenning J, Wensing M, Heinen M, Laurant M. Implementation strategies to enhance management of heavy alcohol consumption in primary health care: a meta-analysis. Addiction. 2015 Dec; 110(12):1877-900.