Early intervention, treatment and rehabilitation of employees with common mental disorders by using psychotherapeutic consultation at work: study protocol of a randomised controlled multicentre trial (friaa project) - Weber, Jeannette; Angerer, Peter; Brenner, Lorena; Brezinski, Jolanda; Chrysanthou, Sophia; Erim, Yesim; Feißt, Manuel; Hansmann, Marieke; Hondong, Sinja; Kessemeier, Franziska Maria; Kilian, Reinhold; Klose, Christina; et al. (Friedrich-Alexander-Universität Erlangen-Nürnberg, 2022)