1. Increase efficiency: use physician preference cards. Studer Group. https://www.studergroup.com/hardwired-results/hardwired-results-04/use-physician-preference-cards. Accessed November 3, 2015.
2. Using IT to drive operational efficiency in the OR;Randa;Healthc Financ Manage,2010
3. Delays in the operating room: signs of an imperfect system;Wong;Can J Surg,2010
4. Kaczmarek D. Preference cards: are they worth it? Healthcare Publ News. http://www.hpnonline.com/inside/2014-01/1401-BackTalk.html. Accessed October 26, 2015.
5. Patient safety primer. Root cause analysis. Agency for Healthcare Research and Quality. http://www.psnet.ahrq.gov/primer.aspx?primerID=10. Accessed October 26, 2015.