Tanaka E, Terada M, Misawa S, Wakasugi C (June 1996). "Simultaneous determination of twelve benzodiazepines in human serum using a new reversed-phase chromatographic column on a 2-microns porous microspherical silica gel". Journal of Chromatography B: Biomedical Sciences and Applications. 682 (1): 173–8. doi:10.1016/0378-4347(96)00121-1. PMID8832439.
Tanaka E, Terada M, Misawa S, Wakasugi C (June 1996). "Simultaneous determination of twelve benzodiazepines in human serum using a new reversed-phase chromatographic column on a 2-microns porous microspherical silica gel". Journal of Chromatography B: Biomedical Sciences and Applications. 682 (1): 173–8. doi:10.1016/0378-4347(96)00121-1. PMID8832439.