Bana DS, Leviton A, Swidler C, Slack W, Graham JR.  1980.  A computer-based headache interview: acceptance by patients and physicians.. Headache. 20(2):85-9.

Leviton A, Schulman J, Kammerman L, Porter D, Slack W, Graham JR.  1980.  A probability model of headache recurrence.. J Chronic Dis. 33(7):407-12.

Porter D, Leviton A, SLACK WV, Graham JR.  1981.  A headache chronicle: the daily recording of headaches and their correlates.. J Chronic Dis. 34(9-10):481-6.

Leviton A, SLACK WV, Bana D, Graham JR.  1984.  Age-related headache characteristics.. Arch Neurol. 41(7):762-4.

Leviton A, SLACK WV, Masek B, Bana D, Graham JR.  1984.  A computerized behavioral assessment for children with headaches.. Headache. 24(2):182-5.

SLACK WV, Leviton A, Bennett SE, Fleischmann KH, Lawrence RS.  1988.  Relation between age, education, and time to respond to questions in a computer-based medical interview.. Comput Biomed Res. 21(1):78-84.