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United States National Ambulatory Medical Care Survey 2004 and United States National Hospital Ambulatory Medical Care Survey 2004

Contributors 
National Center for Health Statistics, Centers for Disease Control and Prevention
United States Census Bureau (USCB)
Merged records 
United States National Hospital Ambulatory Medical Care Survey 2004
United States National Ambulatory Medical Care Survey 2004
Data type
Survey
Summary 

The sum of the number of unique visits to outpatient clinics and outpatient hospital visits were taken to be the number of incident cases.

Suggested citation 
National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention (CDC), United States Census Bureau. United States National Ambulatory Medical Care Survey 2004 and United States National Hospital Ambulatory Medical Care Survey 2004.