U.S. Department of the Army (2017). Procedures for Disability Evaluation for Retention, Retirement, or Separation. Regular Army and Reserve Components Enlistment Program: Army Pamphlet 635-40.
https://armypubs.army.mil/epubs/DR_pubs/DR_a/pdf/web/PAM635-40_Web_FINAL.pdf

has been cited by the following article: