Published by the American Psychiatric Association, this classification and diagnostic tool is the authority in the United States for psychiatric diasnosis. NMU's premium subscription also includes access to the DSM-IV-TR and its Handbook of Differential Diagnosis as well as the Cases from DSM-IV-TR. A paper copy of the DSM-5 can also be found in the Olson Library Reference Collection (Call No. RC455.2.C4 D54).