Bruggisser, M, M Bodmer, MF Wilks, H Kupferschmidt, and M Liechti. 2010. “Retrospective Analysis of Stimulant Abuse Cases Reported to the Swiss Toxicological Information Centre During 1997–2009”. Swiss Medical Weekly 140 (4344):w13115. https://doi.org/10.4414/smw.2010.13115.