Frank, F., Wilk, J., Kriston, L., Bitzer, E.M., Berger, M. und Hölzel, L.P. (2015) Effectiveness of a brief psychoeducational group intervention for relatives on the course of disease in patients after inpatient depression treatment compared with treatment as usual – study protocol of a multisite randomised controlled trial [cd]. Freiburg. doi:10.1186/s12888-015-0633-4.

Frank, Fabian, Juliette Wilk, Levente Kriston, Eva Maria Bitzer, Mathias Berger, und Lars P. Hölzel. Effectiveness of a brief psychoeducational group intervention for relatives on the course of disease in patients after inpatient depression treatment compared with treatment as usual – study protocol of a multisite randomised controlled trial. Cd. Freiburg, [2015?], Freiburg, [2015?]. https://doi.org/10.1186/s12888-015-0633-4.

Frank, F., Wilk, J., Kriston, L., Bitzer, E. M., Berger, M., & Hölzel, L. P. (ca. 2015). Effectiveness of a brief psychoeducational group intervention for relatives on the course of disease in patients after inpatient depression treatment compared with treatment as usual – study protocol of a multisite randomised controlled trial [Cd]. https://doi.org/10.1186/s12888-015-0633-4

Frank, F., J. Wilk, L. Kriston, E. M. Bitzer, M. Berger, und L. P. Hölzel. Effectiveness of a brief psychoeducational group intervention for relatives on the course of disease in patients after inpatient depression treatment compared with treatment as usual – study protocol of a multisite randomised controlled trial. cd, 2015, https://doi.org/10.1186/s12888-015-0633-4.

FRANK, Fabian, Juliette WILK, Levente KRISTON, Eva Maria BITZER, Mathias BERGER und Lars P. HÖLZEL, 2015. Effectiveness of a brief psychoeducational group intervention for relatives on the course of disease in patients after inpatient depression treatment compared with treatment as usual – study protocol of a multisite randomised controlled trial. Freiburg