and recovery. (6) An assessment of such other areas as the Comptroller General considers appropriate to study. III Programs, studies, and guidelines on mental health 301. Program to provide veterans access to computerized cognitive behavioral therapy (a) In general Not later than 210 days after the date of the enactment of this Act, the Secretary of Veterans Affairs shall commence the conduct of a program to assess the feasibility and advisability of using computerized cognitive behavioral therapy to treat eligible veterans suffering from depression, anxiety, post-traumatic stress disorder, military sexual trauma, or substance use disorder who are already receiving evidence-based therapy from the Department of Veterans Affairs. (b) Eligible veterans A veteran is eligible to participate in the program under this section if the veteran— (1) is enrolled in the system of patient enrollment of the Department of Veterans Affairs established and operated under section 1705(a) of title 38, United States Code