Original Investigation August 26, 2020 Writing Committee for the Attention-Deficit/Hyperactivity Disorder; Autism Spectrum Disorder; Bipolar Disorder; et al Major Depressive Disorder; Obsessive-Compulsive Disorder; and Schizophrenia ENIGMA Working Groups JAMA Psychiatry. 2021;78(1):47-63. doi:10.1001/jamapsychiatry.2020.2694 Key Points Question What are the neurobiologic underpinnings of group differences in cortical thickness in various psychiatric disorders?