1. 1. United States Department of Health and Human Services, Agency for Health Care Policy and Research . Statistics from the HCUP-3 nationwide inpatient sample for, 1993 : Diagnosis-related groups. Washington, DC: 1994.
2. 2. United States Department of Health and Human Services, Health Care Financing Administration, Bureau of Data Management and Strategy . 100% MEDPAR inpatient hospital, fiscal year 1993. Washington, DC: 1994 .
3. Patients with syncope admitted to medical intensive care units
4. Impairment of physical and psychosocial function in recurrent syncope