Innovative development and validation of an HPLC/DAD method for the qualitative and quantitative determination of major cannabinoids in cannabis plant material - De Backer, B; Debrus, B; Lebrun, P; Theunis, L; Dubois, N; Decock, L; Verstraete, A; Hubert, P; Charlier, C (J Chromatogr B Analyt Technol Biomed Life Sci, 2009)