Subchapter V. Right to Communication; Exercise of Other Rights. § 21–561. Mail privileges; censored mail; return to sender; visiting hours. § 21–562. Medical and psychiatric care and treatment; records. § 21–563. Use of restraints or seclusion; record of use. § 21–564. Exercise of property and other rights; notice of inability; persons hospitalized prior to September 15, 1964. § 21–565. Statement of release and adjudication procedures and of other rights.