Starzyk K, Richards S, Yee J, Smith SE, Kingma W (February 2007). "The long-term international safety experience of imiglucerase therapy for Gaucher disease". Molecular Genetics and Metabolism. 90 (2): 157–163. doi:10.1016/j.ymgme.2006.09.003. PMID17079176.
Engelberg AB, Kesselheim AS, Avorn J (November 2009). "Balancing innovation, access, and profits--market exclusivity for biologics". The New England Journal of Medicine. 361 (20): 1917–1919. doi:10.1056/NEJMp0908496. PMID19828525.
Starzyk K, Richards S, Yee J, Smith SE, Kingma W (February 2007). "The long-term international safety experience of imiglucerase therapy for Gaucher disease". Molecular Genetics and Metabolism. 90 (2): 157–163. doi:10.1016/j.ymgme.2006.09.003. PMID17079176.
Engelberg AB, Kesselheim AS, Avorn J (November 2009). "Balancing innovation, access, and profits--market exclusivity for biologics". The New England Journal of Medicine. 361 (20): 1917–1919. doi:10.1056/NEJMp0908496. PMID19828525.