The National Center on Addiction and Substance Abuse (CASA) at Columbia University announced that Join Together will be merged into CASA and David L. Rosenbloom, Ph.D., will become the President and Chief Executive Officer of CASA. Joseph A. Califano, Jr., the former U.S. Secretary of Health, Education, and Welfare who founded CASA in 1992 and has been its Chairman and President since that time, will continue to serve as CASA chairman.