Hopfer CJ, Estus S, Golde TE, Younkin SG. "Quantitative Analysis of Gene Expression in Alzheimer’s Disease by Polymerase Chain Reaction of Reverse Transcribed mRNA’s." Poster, Neuropathology Conference. June, 1990. San Francisco, CA.

Hopfer CJ, Mikulich SK, Guillamet I, Crowley TJ. "Attention-Deficit Hyperactivity Disorder and Stimulant Treatment: Parent and Adolescent Reports." Oral presentation at the College on Problems of Drug Dependence. June, 1997. Nashville, TN.

Hopfer CJ, Mikulich SK, Guillemet I, Crowley TJ. "Attention-Deficit Hyperactivity Disorder and Stimulant Treatment: Parent and Adolescent Reports." NIDA Research Monograph Series No. 178: College on Problems of Drug Dependence, p. 130, June 1997.

Hopfer CJ, Mikulich SK, Crowley TJ. "Description of Thirteen Adolescent Patients with Heroin Use." Poster presentation at the Annual Meeting of the American Academy of Child and Adolescent Psychiatry. October 1998. Anaheim, CA.

Hopfer CJ, Crowley TJ. "Comparison Of Mail And Phone Surveys To Recruit Adolescents." Poster presentation Annual Meeting of the American Academy of Child and Adolescent Psychiatry. October, 1999.

Hopfer CJ. "Motivation Interviewing for Adolescent Substance User Disorders." Presented at the Institute: " Effective Treatment of Adolescent Substance Use Disorders: Research to Practice" oral presentation at the American Academy of Child and Adolescent Psychiatry Annual Meeting, October 1999.

Hopfer CJ, Mikulich SK, Crowley TJ, M.D. "Heroin Use Among Adolescents in Treatment for Substance Use Disorders." (In Press)