CCNL Colleagues & Collaborators Greg Brown, UCSD Peter Buckley, Medical College of Georgia Keith Campbell, UGA Katherine Davis , Medical College of Georgia, Georgia Prevention Institute Rod Dishman, UGA Adam Goodie, UGA William Hetrick, Indiana University Andreas Keil, University of Florida Johanna Kissler, University of Konstanz Stephan Moratti, University of Konstanz Leonard Poon, UGA Brigitte Rockstroh, University of Konstanz John Sweeney, University of Illinois-Chicago UGA Statistics: Jeongyoun Ahn, Nicole Lazar, Abhyuday Mandal, Cheolwoo Park, Lynne Seymour