Towards quality assurance in the determination of lysosomal enzymes: a two-centre study - Lukacs, Zoltan; Keil, A.; Peters, Verena; Kohlschütter, A.; Hoffmann, Georg F.; Cantz, Michael; Kopitz, Jürgen (Journal of inherited metabolic disease, 2003)
This revised version was published online in August 2006 with corrections to the cover date