 | Up a level |
Uttinger, Martina; Studerus, Erich; Ittig, Sarah; Heitz, Ulrike; Schultze-Lutter, Frauke; Riecher-Rössler, Anita (2018). The frankfurt complaint questionnaire for self-assessment of basic symptoms in the early detection of psychosis-factor structure, reliability, and predictive validity. International Journal of Methods in Psychiatric Research, 27(2), e1600. Wiley 10.1002/mpr.1600
