The Quit for Life study was a randomized, controlled trial of a self-help quit-smoking intervention designed for African American smokers wanting to quit. The study was conducted as a collaboration between the Cecil G. Sheps Center for Health Services Research (link) at the University of North Carolina at Chapel Hill and the North Carolina Mutual Life Insurance Company (link) of Durham, NC. The project was funded by PHS award 5 R18 CA39279, P30 CA16086 14S1, and R01 CA64060 from the National Cancer Institute (link).