Video: Denise and Eric Kandel: E-Cigarettes May Promote Illicit Drug Use and Addiction, Columbia University News, September 2, 2014 (accessed May 23, 2016).
Video: Denise and Eric Kandel: E-Cigarettes May Promote Illicit Drug Use and Addiction, Columbia University News, 2. September 2014 (abgerufen am 14. Mai 2016).