1. Benda, C. (1939). Arch. Neurol. Psychiat. Chicago, 41, 83.
2. Mongolism and Cretinism.;Benda, C.,1947
3. Comptes Rendus de Bicetre,;Boumeville, P.,1901
4. ' Mongolism.' Baltimore;Brousseau, K.,1928
5. Brushfield, T. (1924). Brit. J. Child. Dis., 21, 241.