1. American Psychiatric Association: Diagnostic and Statistical Manual of Mental Disorders, 4th Edition, Text Revision,2000
2. “Delirium.” Encyclopaedia Britannica. Encyclopaedia Britannica Online Academic Edition. Encyclopedia Britannica Inc. 2014. Available at: http://www.britannica.com/EBchecked/topic/156610/delirium. Accessed October 1, 2014
3. Consequences of delirium after cardiac operations;Koster;Ann Thorac Surg,2012
4. Early post-cardiac surgery delirium risk factors;Andrejaitiene;Perfusion,2012
5. Psychiatric and psychosocial outcome of cardiac surgery with cardiopulmonary bypass: a prospective 12-month follow-up study;Rothenhausler;Gen Hosp Psychiatry,2005