title: Comment on "New Limits on Intrinsic Charm in the Nucleon from Global Analysis of Parton Distributions".
authors.affiliation: SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94309, USA.
authors.forename: Stanley J
authors.initials: SJ
authors.lastname: Brodsky
authors.affiliation: Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055, USA.
authors.forename: Susan
authors.initials: S
authors.lastname: Gardner