1. Agarwalla P, Kuchenhoff J (2004) Evaluation of treatment in the psychotherapeutic day clinic Basel/Teilstationare psychotherapie. Psychotherapeut 49:261–271
2. American Psychiatric Association (1994) Diagnostic and statistic manual of mental disorders 4th edn. APA, Washington DC
3. Arrindell WA (2001) Changes in waiting-list patients over time: data on some commonly-used measures. Beware! Behav Res Ther 39:1227–1247
4. Arrindell WA, Ettema JHM (2003) Symptom checklist, SCL-90. Manual for a multidimensional psychopathology indicator / Symptom Checklist, SCL-90. Handleiding bij een multidimensionele psychopathologie-indicator. Swets Test Publishers, Lisse
5. Arrindell WA, Ettema JH, Groenman N, Brook F, Janssen I, Slaets J, Hekster G, Derksen J, Ende J van der, Land H, Hofman K, Dost S (2003) Science: the growing embedment of the Dutch SCL-90-R. Psycho-diagnostic tools/Wetenschap: De groeiende inbedding van de Nederlandse SCL-90-R. Psychodiagnostisch gereedschap. De Psycholoog 38:576–582