Shahrir, Shahida, Hilary A. Tindle, Kathleen A. McGinnis, David A. Fiellin, Joseph Goulet, Kathleen M. Akgün, Cynthia L. Gibert, Maria C. Rodriguez-Barradas, and Kristina Crothers. "Contemplation of Smoking Cessation and Quit Attempts in HIV-Infected and Uninfected Veterans." Substance abuse (2015).