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Plan and operation of the National Survey of Ambulatory Surgery
1U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics, Hyattsville, Maryland, USA.
Abstract:
The National Survey of Ambulatory Surgery (NSAS), a national probability sample survey of ambulatory surgery visits in hospitals and freestanding ambulatory surgery centers, began operation in 1994. This report traces the development of the survey instruments and procedures, and presents the survey methodology for the NSAS.
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