1. Wolf M, Ransberger K (1972) Enzyme therapy, Vantage Press, New York
2. Holcenberg JS, Roberts J (eds) (1981) Enzyme as drugs, John Wiley, New York
3. Holcenberg JS (1982) Ann Rev Biochem 51: 795
4. Tager JM, Hooghwinkel GJM, Daems WT (eds) (1974) Proceedings of the workshop on cell biological and enzymological aspects of the therapy of lysosomal storage diseases, Leiden, The Netherlands, Elsevier, New York
5. Tager JM, Daems WT, Hoodhwinkel GJM (eds) (1974) Enzyme therapy in lysosomal storage diseases, North/Holland, Amsterdam