title: Response to Cunningham et al.
authors.affiliation: Organic Acid Research Section, Genetics and Molecular Biology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA.
authors.forename: Irini
authors.initials: I
authors.lastname: Manoli
authors.affiliation: Nutrition Department, National Institutes of Health, Bethesda, Maryland, USA.
authors.forename: Jennifer G
authors.initials: JG
authors.lastname: Myles
authors.affiliation: Organic Acid Research Section, Genetics and Molecular Biology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA.
authors.forename: Jennifer L
authors.initials: JL
authors.lastname: Sloan
authors.affiliation: Organic Acid Research Section, Genetics and Molecular Biology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA.|Division of Genetics, Stead Department of Pediatrics, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA.
authors.forename: Oleg A
authors.initials: OA
authors.lastname: Shchelochkov
authors.affiliation: Organic Acid Research Section, Genetics and Molecular Biology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA.
authors.forename: Charles P
authors.initials: CP
authors.lastname: Venditti