TY - CHAP M1 - Book, Section TI - Psychiatric Disorders A1 - Jameson, J. Larry A1 - Fauci, Anthony S. A1 - Kasper, Dennis L. A1 - Hauser, Stephen L. A1 - Longo, Dan L. A1 - Loscalzo, Joseph Y1 - 2020 N1 - T2 - Harrison's Manual of Medicine, 20e AB - Psychiatric disorders are common in medical practice and may present either as a primary disorder or as a comorbid condition. The prevalence of mental or substance use disorders in the United States is ∼30%, but only one-third of those individuals are currently receiving treatment. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/23 UR - accessmedicine.mhmedical.com/content.aspx?aid=1167069486 ER -