title: Time to Update the Gross Motor Function Classification System (GMFCS) for Early Age Bands by Incorporation of Assisted Mobility?
authors.affiliation: Department of Pediatrics-Division of Developmental Neurology, University of Groningen, University Medical Center Groningen, and Department of Rehabilitation Medicine Center for Rehabilitation, the Netherlands Department of Pediatrics-Division of Developmental Neurology, University of Groningen, University Medical Center Groningen, the Netherlands Department of Pediatrics-Division of Developmental Neurology, University of Groningen, University Medical Center Groningen, and Department of Neurology Radboud University Medical Center Nijmegen, the Netherlands Department of Rehabilitation Medicine-Center for Rehabilitation, University of Groningen, University Medical Center Groningen, the Netherlands Department of Pediatrics-Division of Developmental Neurology, University of Groningen, University Medical Center Groningen, the Netherlands.
authors.forename: Tjitske
authors.initials: T
authors.lastname: Hielkema
authors.forename: Anke G
authors.initials: AG
authors.lastname: Boxum
authors.forename: Elisa G
authors.initials: EG
authors.lastname: Hamer
authors.forename: Jan H B
authors.initials: JH
authors.lastname: Geertzen
authors.forename: Mijna
authors.initials: M
authors.lastname: Hadders-Algra