Vanmaldergem, L., Gillerot, Y., Perlmutter, N., Wetzburger, C., & Koulischer, L. (1990). Mental-retardation, Short Stature, Almond-shaped Eyes, Small Downturned Mouth and Coned Epiphyses - a New Case of Hunter-fraser Syndrome. American Journal of Medical Genetics, 37(2), 283-285. https://doi.org/10.1002/ajmg.1320370225 (Original work published 1990)