Robin Van Eck

118 Chapter 6 Truiden, PZ Sancta Maria Sint-Truiden, GGZ Overpelt, OPZ Rekem. Utrecht: University Medical Center Utrecht and the mental health institutions Altrecht, GGZ Centraal and Delta.) Acknowledgements We are grateful for the generosity of time and effort by the patients, their families and healthy subjects. Furthermore, we would like to thank all research personnel involved in the GROUP project, in particular: Joyce van Baaren, Erwin Veermans, Ger Driessen, Truda Driesen, Erna van ’t Hag. Conflict of interest statement The authors have declared that there are no conflicts of interest in relation to the subject of this study. Contributions RE, JV, AV, FS and LH contributed to the conception and design of the study. JV and FS contributed to data analyses. RE, JV, AV, FS and LH contributed to data interpretation. RE, JV and FS drafted the article while the other authors critically appraised it and revised it. All authors approved the final version of the manuscript for submission and publication. Publication statement This chapter has been published as an article by Elsevier: https://doi.org/10.1016/j.schres.2023.02.026

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