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Mareck, U; Haenelt, N; Guyer, H; Guddat, S; Kamber, M; Brenneisen, R; Thevis, M; Schänzer, W (2009). Temporal indication of cannabis use by means of THC glucuronide determination. Drug testing and analysis, 2009(1), pp. 505-510. Chichester: Wiley 10.1002/dta.106
