N. Boonstra a, ⁎, b, d, 1
These two authors contributed equally to this work and are joined first authors.
, B. Sterk b, 1
These two authors contributed equally to this work and are joined first authors.
, L. Wunderink a, S. Sytema c, L. De Haan b, D. Wiersma c
a Friesland Mental Health Care Service, Department of Education and Research, PO Box 932, 8901 Leeuwarden, The Netherlands
b Academic Medical Center, University of Amsterdam, Department of Psychiatry, Meibergdreef 5, Room PA3-129, 1105 AZ Amsterdam, The Netherlands
c Department of psychiatry (CC72), University Center of Psychiatry, University Medical Centre Groningen, University Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
d NHL University of Applied Science, Institute of Healthcare and Welfare Studies, Leeuwarden, The Netherlands