The Former Prisoner of War (POW) Statistical Tracking System database is a registry designed to comply with Public Law 97-37, the Former Prisoner of War Benefits Act of 1981. This database contains information about the Medical Evaluation Program for ex-POWs at VA facilities. The program provides a complete medical and psychiatric evaluation of ex-POWs. Only ex-POWs who volunteer to participate in the program are included in this registry. Health examinations are given to ex-POWs at VA facilities. The findings are then recorded on a special coding sheet, VA Form 10-0048a. Quarterly, these code sheets are sent to the Austin Information Technology Center, where they are manually keyed into the database. The main users of this registry are: * The Advisory Committee on Former Prisoners of War * Congress * National Academy of Sciences * Researchers * The National Center for Veteran Analysis and Statistics.