The German PASS-20 in patients with low back pain: new aspects of convergent, divergent, and criterion-related validity
International Journal of Behavioral Medicine (2015) - Comment
pubmed: 25081099  doi: 10.1007/s12529-014-9426-2  issn: 1070-5503  issn: 1532-7558 

Nina Kreddig, Adina C. Rusu, Katja Burkhardt, Monika I. Hasenbring