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Katsuki, Takeo and Mackey, Tim Ken and Cuomo, Raphael (2015) Establishing a link between prescription drug abuse and illicit online pharmacies: analysis of Twitter data. Journal of Medical Internet Research , 17 , (12 e280) , e280.
Mackey, Tim Ken and Liang, Bryan A (2013) Global reach of direct-to-consumer advertising using social media for illicit online drug sales. Journal of Medical Internet Research , 15 , (5 e105) , e105.