About the Authors

Sang Soo Cho

Affiliations Toronto Western Research Institute and Hospital, UHN, University of Toronto, Toronto, Canada, PET Imaging Centre, Centre for Addiction and Mental Health, University of Toronto, Toronto, Canada

Antonio P. Strafella

antonio.strafella@uhnres.utoronto.ca

Affiliations Toronto Western Research Institute and Hospital, UHN, University of Toronto, Toronto, Canada, PET Imaging Centre, Centre for Addiction and Mental Health, University of Toronto, Toronto, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: APS. Performed the experiments: SSC. Analyzed the data: SSC. Wrote the paper: SSC APS.