Rockville, Md. : U.S. Department of Health, Education, and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics : For sale by the Supt. of Docs., U.S. G.P.O., 1975-
Issued also online via the NCHS Web site (PDF file only). Address as of 3/16/2007: http://www.cdc.gov/nchs/products/pubs/pubd/series/sr13/ser13.htm; current access via purl.
The data set resulting from the annual NAMCS survey is contained in the CD-ROM publication: National Ambulatory Medical Care Survey (CD-ROM).
Brief summary available in: National Ambulatory Medical Care Survey, ... summary (Advance data).