E-mail invitations to general practitioners were as effective as postal invitations and were more efficient
Citation
Treweek , S , Barnett , K , Maclennan , G , Bonetti , D , Eccles , M P , Francis , J J , Jones , C , Pitts , N B , Ricketts , I W , Weal , M & Sullivan , F 2012 , ' E-mail invitations to general practitioners were as effective as postal invitations and were more efficient ' , Journal of Clinical Epidemiology , vol. 65 , no. 7 , pp. 793-797 . https://doi.org/10.1016/j.jclinepi.2011.11.010