Descripción
Publicado:Print began with vol. 1, no. 1 (Sept. 1988); online ceased with vol. 19, no. 1 (Feb. 2009)?
Notas:No longer distributed to depository libraries in physical form, 2000-
Descripción Física:volumes : digital, PDF files
Frecuencia de Publicación:Irregular
Formato:Mode of access: Latest issue only via the Internet from the CDC web site. Address as of 03/09/01: http://www.cdc.gov/nccdphp/cdnr.htm; current access available via PURL.