National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention."This publication was supported by Cooperative Agreement Number U57/CCU 623066-01 from the Centers for Disease Control and Prevention. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the Centers for Disease Control and Prevention, the Department of Health and Human Services, or the U.S. government." - p. iiAlso available via the World Wide Web as an Acrobat .pdf file (1.12 MB, 88 p.)Includes bibliographical references (p. 68-69)
