Looking inside the black box : results of a theory-based process evaluation exploring the results of a randomized controlled trial of printed educational messages to increase primary care physicians' diabetic retinopathy referrals [Trial registration number ISRCTN72772651]
Citation
Grimshaw , J M , Presseau , J , Tetroe , J , Eccles , M P , Francis , J J , Godin , G , Graham , I D , Hux , J E , Johnston , M , Légaré , F , Lemyre , L , Robinson , N & Zwarenstein , M 2014 , ' Looking inside the black box : results of a theory-based process evaluation exploring the results of a randomized controlled trial of printed educational messages to increase primary care physicians' diabetic retinopathy referrals [Trial registration number ISRCTN72772651] ' , Implementation Science , vol. 9 , 86 . https://doi.org/10.1186/1748-5908-9-86