![Insomnia complaints and substance use in German adolescents: did we underestimate the role of coffee consumption? Results of the KiGGS study]()
Insomnia complaints and substance use in German adolescents: did we underestimate the role of coffee consumption? Results of the KiGGS studySkarupke, Christian; Schlack, Robert; Lange, Karoline; Goerke, Monique; Dueck, Alexander; Thome, Johannes; Szagun, Bertram; Cohrs, Stefan · Journal of Neural Transmission · 2017