1. Leroy, J. G., De Mars, R. I., Opitz, J. M.: ?I-cell? disease, In: First Conference on the Clinical Delineation of Birth Defects; Birth Defects Original Article Series, The National Foundation?March of Dimes, New York, N.Y., Vol. V, part 4, 174 (1969).
2. De Mars, R. I., Leroy, J. G.: The remarkable cells cultured from a human with Hurler's syndrome: An approach to visual selection for in vitro genetic studies. In: In Vitro (Tissue Culture Association)2, 107 (1967).
3. Hanai, J., Leroy, J., O'Brien, J. S.: Ultrastructure of cultured fibroblasts in I-cell disease. Amer. J. Dis. Child.122, 34 (1971).
4. Kenyon, K. R., Sensenbrenner, J. A.: Mucolipidosis II (I-cell disease): Ultrastructural observations of conjunctiva and skin. Invest. Ophthal.10, 555 (1971).
5. Tondeur, M., Vamos-Hurwitz, E., Mockel-Pohl, S., Dereume, F. P., Cremer, N., Loeb, H.: Clinical, biochemical and ultrastructural studies in a case of chondrodystrophy presenting the I-cell phenotype in tissue culture. J. Pediat.79, 366 (1971).