1. American Psychiatric Association. Diagnostic and Statistical Manual of mental disorders. 4th ed. Washington DC: Author; 1994.
2. Audit Commission. Critical to Success: The place of efficient and effective critical care services within the acute hospital. Audit Commission: London; 1999.
3. Half the families of intensive care unit patients experience inadequate communication with physicians;Azoulay;Crit Care Med,2000
4. Use of a personal diary written on the ICU during critical illness;Backman;Intensive Care Med,2001
5. Traumatic stress in parents of children admitted to the pediatric intensive care unit;Balluffi;Pediatr Crit Care Med,2004