Jafaei Dalooei,R , , Seyedi,S M , , Amirkhani,A R , and Vafaei Najar,A . "Efficacy of Suggestion System in Hashemi Nezhad Hospital, Mashhad University of Medical Sciences during 2010-2012", Journal of Patient Safety & Quality Improvement, 4, 3, 2016, 412-415. doi: 10.22038/psj.2016.7173