van der Maas, L., J. E. Bosmans, M. W. van Tulder, and T. W. Janssen. “Cost-Effectiveness of Adding Psychomotor Therapy to a Multidisciplinary Rehabilitation Program for Chronic Pain”. Global and Regional Health Technology Assessment, vol. 7, no. 1, Dec. 2020, pp. 124-30, doi:10.33393/grhta.2020.2031.