[1] Univ Continuing Educ Krems, Dept Evidence Based Med & Evaluat, Dr Karl Dorrek Str 30, A-3500 Krems Ad Donau, Austria
[2] Univ Continuing Educ Krems, Dept Psychotherapy & Biopsychosocial Hlth, A-3500 Krems, Austria
[3] Catholic Univ Eichstat Ingolstadt, Clin & Biol Psychol, D-85072 Eichstat, Germany
[4] Brandenburg Med Sch Theodor Fontane, Neuruppin, Germany
[5] Austrian Fed Assoc Psychotherapy, A-1030 Vienna, Austria
[6] ABILE Viktor Frankl Educ Austria, A-3390 Melk, Austria
[7] PROGES, A-4020 Linz, Austria
[8] RTI Int, 3400 Cornwallis Rd, Res Triangle Pk, NC USA