"Facility." Any mental health establishment, hospital, clinic, institution, center, day-care center, base service unit, community mental health center or other organizational unit, or part thereof, which is devoted primarily to the diagnosis, treatment, care, rehabilitation or detention of mentally disabled persons.
"Parents." Includes persons who, for a period of not less than one year, acted in the capacity of a foster parent to the veteran immediately prior to the veteran having attained 18 years of age.
51 P.S. § 20305