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Filters: Keyword is Headache and Author is Porter, D [Clear All Filters]

1981

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.

1980

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.