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Lüdtke, Thies; Pfuhl, Gerit; Moritz, Steffen; Rüegg, Nina Lee; Berger, Thomas; Westermann, Stefan (2021). Sleep problems and worrying precede psychotic symptoms during an online intervention for psychosis. British journal of clinical psychology, 60(1), pp. 48-67. Wiley-Blackwell 10.1111/bjc.12270
