From the National Institute on Drug Abuse, National Institutes of Health, Bethesda
(N.D.V.), the Substance Abuse and Mental Health Services Administration, Rockville
(P.S.H.), and the Center for Medicaid and CHIP Services, Centers for Medicare and
Medicaid Services, Baltimore (S.S.C.) - all in Maryland; and the Centers for Disease
Control and Prevention, Atlanta (T.R.F.).