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APA Citation
Versluis, A., Verkuil, B., Spinhoven, P., & F Brosschot, J. (2018). effectiveness of a smartphone-based worry-reduction training for stress reduction: A randomized-controlled trial. Psychology & health, 33(9), 1079–1099. http://access.bl.uk/ark:/81055/vdc_100066564511.0x000044