Beentjes, T. A. A., Teerenstra, S., Vermeulen, H., Goossens, P. J. J., der Sanden, M. W. G. N., & van Gaal, B. G. I. (2021). Identifying the minimal important difference in patient-reported outcome measures in the field of people with severe mental illness: A pre–post-analysis of the Illness Management and Recovery Programme. Qual Life Res.

Beentjes, Titus A. A., Steven Teerenstra, Hester Vermeulen, Peter J. J. Goossens, Maria W. G. Nijhuis-van der Sanden, and Betsie G. I. van Gaal. "Identifying the Minimal Important Difference in Patient-reported Outcome Measures in the Field of People With Severe Mental Illness: A Pre–post-analysis of the Illness Management and Recovery Programme." Qual Life Res 2021.

Beentjes, Titus A. A., et al. "Identifying the Minimal Important Difference in Patient-reported Outcome Measures in the Field of People With Severe Mental Illness: A Pre–post-analysis of the Illness Management and Recovery Programme." Qual Life Res 2021.