1. Detectability of cannabinoids in the serum samples of cannabis users: Indicators of recent cannabis use? A follow‐up study. Issue 9 (21st June 2021) Authors: Krämer, Michael; Schäper, Martin; Dücker, Kristina; Philipsen, Alexandra; Losacker, Moritz; Dreimüller, Nadine; Engelmann, Jan; Madea, Burkhard; Hess, Cornelius Journal: Drug testing and analysis Issue: Volume 13:Issue 9(2021) Page Start: 1614 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗