Validation of a brief measure of anxiety-related severity and impairment: The overall anxiety severity and impairment scale (OASIS)
Campbell-Sills L, Norman SB, Craske MG, Sullivan JG, Lang AJ, Chavira DA, Bystritsky A, Sherbourne C, Roy-Byrne P, Stein MB. Validation of a brief measure of anxiety-related severity and impairment: The overall anxiety severity and impairment scale (OASIS). Journal of Affective Disorders. 2009; 112(1-3):92-101.