Mo. Rev. Stat. § 58.770
58.770 Pituitary gland to be retained when autopsy is performed unless decedent or ...
58.770. Pituitary gland to be retained when autopsy is performed unless decedent or next of kin has indicated a contrary intention. — When an autopsy is performed by a coroner's physician or medical examiner under authority granted by sections 58.451 and 58.725 , the physician or medical examiner may retain the pituitary gland removed at the time of autopsy unless a contrary indication was given by the decedent or is declared by the next of kin for purposes of medical research, education and therapy.
(L. 1977 H.B. 726 § 1)