Source document verification in the Mucopolysaccharidosis Type I Registry

Karien Verhulst, Laura Artiles-Carloni, Michael Beck, Joe T R Clarke, Jordao Correa Neto, Gerald F. Cox, Paul M. Fernhoff, Nathalie Guffon, Yuan Kong, Ana Maria Martins, Anna Tylki-Szymanska, Chester B. Whitley, Frits A. Wijburg, Edward J. Wraith, Catherine M. Koepper