title: Letter to the Editors: Concerning "CRIM-negative Pompe disease patients with satisfactory clinical outcomes on enzyme replacement therapy" by Al Khallaf et al.
authors.affiliation: Division of Medical Genetics, Department of Pediatrics, Duke University Medical Center, Durham, NC, 27710, USA.
authors.forename: Sean N
authors.initials: SN
authors.lastname: Prater
authors.forename: Suhrad G
authors.initials: SG
authors.lastname: Banugaria
authors.forename: Claire
authors.initials: C
authors.lastname: Morgan
authors.forename: Crystal C
authors.initials: CC
authors.lastname: Sung
authors.forename: Amy S
authors.initials: AS
authors.lastname: Rosenberg
authors.forename: Priya S
authors.initials: PS
authors.lastname: Kishnani