that may be found in sources described in such subsection. (2) Examples of behavior changes that may be relevant evidence of an assault, battery, or harassment described in subsection (a)(1) include the following: (A) A request for a transfer to another military duty assignment. (B) Deterioration in work performance. (C) Substance abuse. (D) Episodes of depression, panic attacks, or anxiety without an identifiable cause. (E) Unexplained economic or social behavior changes. (c) Notice and opportunity To supply evidence The Secretary may not deny a claim of a veteran for compensation under this chapter for a post-traumatic stress disorder that is based on an assault, battery, or harassment described in subsection (a)(1) without first— (1) advising the veteran that evidence described in subsections (a) and (b) may constitute credible corroborating evidence of the assault, battery, or harassment