Mindy Widman - Institute on Aging, University of Pennsylvania Health Systems, Philadelphia, PA 19104, USA
Victor Lidz - Institute for Addictive Disorders, MS 984, MCP Hahnemann University, Philadelphia, PA 19102-1192, USA
G.John DiGregorio - Hahnemann University Hospital
Arlene K. Platt - Institute for Addictive Disorders, MS 984, MCP Hahnemann University, Philadelphia, PA 19102-1192, USA
Lenore Robison - Institute for Addictive Disorders, MS 984, MCP Hahnemann University, Philadelphia, PA 19102-1192, USA
Jerome J. Platt - Institute for Addictive Disorders, MS 984, MCP Hahnemann University, Philadelphia, PA 19102-1192, USA