Primer of applied regression & analysis of variance [electronic resource] / Stanton A. Glantz, PHD, Professor of Medicine, Director, Center for Tobacco Control Research and Education, Cardiovascular Research Institute, Philip R. Lee Institute for Health Policy Studies, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, California, Bryan K. Slinker, DVM, PHD, Professor of Integrative Physiology and Neuroscience, Dean, College of Veterinary Medicine, Washington State University, Pullman, Washington, Torsten B. Neilands, PHD, Professor of Medicine, Director, Methods Core, Center for AIDS Prevention Studies, University of California, San Francisco, San Francisco, California.