Intrathecal enzyme replacement therapy reduces lysosomal storage in the brain and meninges of the canine model of MPS I. - Kakkis,E.; McEntee,M.; Vogler,C.; Le,S.; Levy,B.; Belichenko,P.; Mobley,W.; Dickson,P.; Hanson,S.; Passage,M. (Mol Genet Metab, 2004)