Establishing a Link Between Prescription Drug Abuse and Illicit Online Pharmacies: Analysis of Twitter Data

Takeo Katsuki   ^{1 *} , PhD ;   Tim Ken Mackey   ^{2, 3, 4 *} , MAS,PhD ;   Raphael Cuomo   ^{4, 5} , MPH

¹ Kavli Institute for Brain and Mind, University of California, San Diego, La Jolla, CA, United States

² Department of Anesthesiology, UC San Diego - School of Medicine, La Jolla, CA, United States

³ Division of Global Public Health, UC San Diego - School of Medicine, La Jolla, CA, United States

⁴ Global Health Policy Institute, La Jolla, CA, United States

⁵ JDP In Global Public Health, UC San Diego - San Diego State University, La Jolla, CA, United States

*these authors contributed equally