HealioDelirium and Dementia: Bedside Assessment of Confusional StatesHealioAmerican Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders. 4th ed. Washington, DC: American Psychiatric Association; 1994. Bucht G, Gustafson Y, Sandberg O, et al. Epidemiology of delirium. Dement Geriatr Cogn Disord. 1999 ...