“…In this age group, ever SC use was first reported to be around 10% (e.g., Barratt et al, 2013;Forrester, Kleinschmidt, Schwarz, & Young, 2012;Gunderson, Haughey, AitDaoud, Joshi, & Hart, 2014;Hu, Primack, Barnett, & Cook, 2011;Vandrey et al, 2012), but the recently published results of a self-reported study, including almost 15,000 participants from different countries, revealed lifetime use to be more prevalent: 16.8% (Winstock & Barratt, 2013). Accumulating evidence demonstrates the increasing popularity of SCs amongst soldiers (Bebarta, Ramirez, & Varney, 2012;Loeffler, Hurst, Penn, & Yung, 2012) and athletes (Heltsley et al, 2012;M€ oller et al, 2011).…”