Dr. Dennis’ research focus is on melanoma, hepatocellular and prostate cancer etiology and prevention as related to environmental risk factors with R03, R01 and K07 funding. She has used tools such as mailed questionnaires, telephone interviews along with molecular analyses of trace elements and sexually transmitted infections to conduct this research, but also has interest in genetics. She also has expertise in conducting meta-analyses as related to risk factors for cancer. Dr. Dennis is a reviewer for several cancer and epidemiological journals. She has reviewed R03 and K07 applications for the NCI and spent 5 years as a grant reviewer for the American Cancer Society including chairing the Clinical Research, Cancer Control and Epidemiology peer grant review committee. She has served on the Diversity and Inclusiveness Committee at the College of Public Health and is currently the College’s representative on the University of Arizona’s Undergraduate Council and its Curriculum and Polices subcommittee.