Chanowitz J, Ellman G, Silverstein C I, Zingarelli G, Ganger E
Am J Ment Defic. 1985 Sep;90(2):217-9.
Institutionalized profoundly mentally retarded adults (N = 37) were studied to determine whether thyroid medication is an essential component of a recently introduced nutritional supplementation treatment. Biochemical assessments confirmed that compliance with the treatments was adequate; however, no significant IQ improvements were observed.