The effect of registry-based performance feedback via short text messages and traditional postal letters on prescribing parenteral steroids by general practitioners - A randomized controlled trial. - Afshin Sarafi Nejad; Mohammad Reza Farrokhi Noori; Aliakbar Haghdoost; Kambiz Bahaadinbeigy; Ameen Abu-Hanna; Saeid Eslami (Int. J. Medical Informatics, 2016)