My research interests include behavioral, environmental and molecular approaches to understanding and preventing cancer both at Penn State and in collaboration with several international consortiums including the International Head and Neck Cancer Epidemiology Consortium, the International Lung Cancer Consortium, PANC3, and Stomach Cancer Pooling Project. I have had an active interest in cancer disparities, especially in determining racial and socioeconomic differences in risk, with an emphasis on tobacco-related cancers. In collaboration with lab-based science, I have been involved in the application of exposure biomarkers to address question on individual susceptibility and risk reduction.

Research Interests

Tobacco; Neoplasms; Confidence Intervals; Odds Ratio; Popultion; Case-Control Studeis


  • Ph.D., Environmental Health Science, New York University, 2001
  • M.P.H., Epidemiology, Yale University, 1986
  • A.B., Biopsychology, Vassar College, 1982