The Content of Ambulatory Medical Care in the United States

Abstract
Ambulatory care, accounting for over half a billion visits to physicians per year, is a major component of the health-care system and is the core of primary health care. This study uses data from the National Ambulatory Medical Care Survey to describe the most common problems seen in an ambulatory-care setting, to identify the medical specialties that provide the greater part of this care, and to characterize the major specialties in terms of the diagnoses in the patients who constitute their ambulatory practice.

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