Addiction Science & Clinical Practice (AS&CP) is about to enter a new stage in its development. After this issue, the journal moves to a new publisher, Biomed Central, and assumes a new format as an openaccess, Internet-only publication. Taking over as Editors are Richard Saitz, M.D., M.P.H., and Jeffrey Samet, M.D., M.A., M.P.H., of the Clinical Addiction Research and Education Unit at Boston ...