Acknowledgements
RECRUITMENT
The authors thank the CRF-2 study group collaborators: Fadime ten Brink for local study coordination and documentation, Bettina Berger for local study coordination, Annette Weninger for documentation, Matthias Girke for his contribution in the development of the intervention program, Augustina Müller-Glinz, for recruitment, Christian Heckmann for sleep education, and also all participating assistants and therapists for their contribution.