1. Department of Psychiatry, Department of Anatomy & Neurosciences, Amsterdam Neuroscience Amsterdam UMC, Vrije Universiteit Amsterdam Amsterdam The Netherlands
2. Bergen Center for Brain Plasticity Haukeland University Hospital Bergen Norway
3. Department of Psychiatry Bellvitge University Hospital, Bellvitge Biomedical Research Institute‐IDIBELL Barcelona Spain
4. Department of Psychiatry, Amsterdam Neuroscience Amsterdam UMC, University of Amsterdam Amsterdam The Netherlands
5. Department of Language & Genetics Max Planck Institute for Psycholinguistics Nijmegen The Netherlands
6. Donders Institute for Brain, Cognition and Behaviour Radboud University Nijmegen The Netherlands
7. Icahn School of Medicine at Mount Sinai New York New York
8. Keck USC School of Medicine Imaging Genetics Center, Mark & Mary Stevens Institute for Neuroimaging & Informatics Marina del Rey California
9. Department of Psychiatry Seoul National University College of Medicine Seoul South Korea
10. Department of Brain & Cognitive Sciences Seoul National University College of Natural Sciences Seoul South Korea
11. Division of Child & Adolescent Psychiatry UCLA Jane & Terry Semel Institute For Neuroscience Los Angeles California
12. Holland Bloorview Kids Rehabilitation Hospital Bloorview Research Institute Toronto Ontario Canada
13. Laboratory of Neuropsychiatry IRCCS Santa Lucia Foundation Rome Italy
14. Orygen, The National Centre of Excellence in Youth Mental Health Parkville Australia
15. Centre for Youth Mental Health, The University of Melbourne Melbourne Australia
16. Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM) Barcelona Spain
17. Department of Psychobiology and Methodology in Health Sciences Universitat Autònoma de Barcelona Barcelona Spain
18. Division of Neuropsychiatry, Menninger Department of Psychiatry and Behavioral Sciences Baylor College of Medicine Houston Texsas
19. Seoul National University Hospital Seoul Republic of Korea
20. Yeongeon Student Support Center, Seoul National University College of Medicine Seoul Republic of Korea
21. Center for OC and Related Disorders at the New York State Psychiatric Institute and Columbia University Irving Medical Center New York New York
22. Departamento e Instituto de Psiquiatria do Hospital das Clinicas, IPQ HCFMUSP, Faculdade de Medicina Universidade de São Paulo São Paulo Brazil
23. Department of Human Genetics Radboud University Medical Center Nijmegen The Netherlands
24. Mathison Centre for Mental Health Research & Education and Department of Psychiatry Cumming School of Medicine, University of Calgary Calgary Alberta Canada
25. Humboldt‐Universität zu Berlin Department of Psychology Berlin Germany
26. Karolinska Institutet Department of Clinical Neuroscience Stockholm Sweden
27. Department of Psychiatry and Clinical Psychobiology Scientific Institute Ospedale Milan Italy
28. Obsessive‐Compulsive Disorder (OCD) Clinic Department of Psychiatry National Institute of Mental Health and Neurosciences Bangalore India
29. McLean Hospital, Harvard Medical School Belmont Massachusetts
30. Department of Psychology Texas State University San Marcos Texas
31. Department of Psychiatry University of Michigan Medical School Ann Arbor Michigan
32. Department of Psychiatry Yale University New Haven Connecticut
33. Department of Child and Adolescent Psychiatry and Psychotherapy University Hospital of Psychiatry, University of Zurich Zurich Switzerland
34. Neuroscience Center Zurich University of Zurich and ETH Zurich Zurich Switzerland
35. Zurich Center for Integrative Human Physiology University of Zurich Zurich Switzerland
36. Research Center for Child Mental Development Chiba University Chiba Japan
37. De Bascule, academic center child and adolescent psychiatry Amsterdam The Netherlands
38. Department of Psychiatry University of Oxford Oxford UK
39. Department of Neuroradiology, School of Medicine Klinikum Rechts der Isar, Technical University of Munich Munich Germany
40. Department of Child and Adolescent Psychiatry and Psychology, IDIBAPS, CIBERSAM, Department of Medicine Faculty of Barcelona Barcelona Spain
41. SAMRC Unit on Risk & Resilience in Mental Disorders, Department of Psychiatry Stellenbosch University Matieland South Africa
42. Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho Braga Portugal
43. ICVS/3B's, PT Government Associate Laboratory Braga/Guimarães Portugal
44. Clinical Academic Center–Braga Braga Portugal
45. Department of Psychiatry Graduate School of Medical Science, Kyoto Prefectural University of Medicine Kyoto Japan
46. Department of Neuropsychiatry, Graduate School of Medical Sciences Kyushu University Kyushu Japan
47. Department of Psychiatry and Biobehavioral Sciences University of California Los Angeles California
48. OCD Research Clinic Yale University New Haven Connecticut
49. Center of Mathematics, Computing and Cognition Universidade Federal do ABC Santo André Brazil
50. Pediatric OCD Consultation Service, Anxiety Treatment and Research Center McMaster University Hamilton Ontario Canada
51. Department of Psychiatry University of British Columbia Vancouver British Columbia Canada
52. BC Mental Health and Addictions Research Institute Vancouver British Columbia Canada
53. BC Children's Hospital Vancouver British Columbia Canada
54. Anxiety Disorders Center, The Institute of Living Hartford Connecticut
55. Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine Shanghai China
56. Institute of Psychological and Behavioral Science, Shanghai Jiao Tong University Shanghai China
57. SAMRC Unit on Risk & Resilience in Mental Disorders, Department of Psychiatry & Neuroscience Institute University of Cape Town Cape Town South Africa