O'Brien, Fearghal, Simons-Morton, Bruce G., Chaurasia, Ashok, Luk, Jeremy, Haynie, Denise and Liu, Danping (2018) Post-High School Changes in Tobacco and Cannabis Use in the United States. Substance Use & Misuse, 53 (1). pp. 26-35. ISSN 1532-2491
Simons-Morton, Bruce G., Haynie, Denise, O'Brien, Fearghal, Lipsky, Leah, Bible, Joe and Liu, Danping (2017) Variability in measures of health and health behavior among emerging adults 1 year after high school according to college status. Journal of American College Health, 65 (1). pp. 58-66. ISSN 1940-3208
O'Brien, Fearghal, Haynie, Denise and Simons-Morton, Bruce G. (2016) Is marijuana a gateway to harder drugs? Are harder drugs a gateway to marijuana. In: 2016 Society for Research on Adolescence Biennial Meeting, 31st March - 2nd April 2016, Baltimore, MD. (Submitted)
Perlus, Jessamyn G., O'Brien, Fearghal, Haynie, Denise and Simons-Morton, Bruce G. (2015) Adolescent sleep insufficiency one year after high school. In: 2015 Annual Convention of the American Psychological Association, 6th-9th August 2015, Toronto, ON. (Submitted)