[1
]ISNI 0000 0000 8580 3777, GRID grid.6190.e, Unireha, , University of Cologne, Center of Prevention and Rehabilitation, ; Cologne, Germany
[2
]ISNI 0000 0000 8580 3777, GRID grid.6190.e, University of Cologne, Children’s Hospital, ; Kerpenerstraße 62, 50931 Cologne, Germany
[3
]ISNI 0000000120346234, GRID grid.5477.1, ACHIEVE, Center for Applied Research, Faculty of Health, , University of Applied Sciences Amsterdam, ; Amsterdam, The Netherlands
[4
]ISNI 0000000084992262, GRID grid.7177.6, Department of Rehabilitation, Academic Medical Centre, , University of Amsterdam, Amsterdam Movement Sciences, ; Amsterdam, The Netherlands
[5
]ISNI 0000 0001 2285 8823, GRID grid.239915.5, Hospital for Special Surgery, ; NYC, NY, USA
[6
]ISNI 0000 0004 0638 325X, GRID grid.414018.8, Children’s Hospital, ; Toulouse, France
[7
]ISNI 0000 0001 0125 3761, GRID grid.414449.8, Medical Genetics Service, , Hospital de Clinicas de Porto Alegre, ; Porto Alegre, Brazil
[8
]ISNI 0000 0004 0612 1014, GRID grid.416731.6, National Resource center for rare disorders. Part of the National Advisory Unit on
Rare Disorders (NKSD), , Sunnaas Rehabilitation Hospital, ; Nesodden, Norway
[9
]GRID grid.420417.4, IRCCS Eugenio Medea, ; Bosisio Parini (LC), Italy
[10
]ISNI 0000 0004 0463 9178, GRID grid.419127.8, Sheffield Children’s NHS Foundation Trust, ; Sheffield, UK
[11
]ISNI 0000 0004 0380 7336, GRID grid.410421.2, Bristol Royal Hospital for Children, , University Hospitals Bristol NHS Foundation Trust, ; Bristol, UK
[12
]ISNI 0000 0004 0629 1363, GRID grid.415833.8, Shriners Hospital for Children, ; Montreal, Quebec, Canada
[13
]ISNI 0000 0000 9690 854X, GRID grid.413973.b, The Children’s Hospital at Westmead, ; Sydney, Australia
[14
]ISNI 0000 0001 2158 5405, GRID grid.1004.5, Macquarie University, ; Sydney, Australia
[15
]AHUCE and Fundacion AHUCE, Madrid, Spain
[16
]ISNI 0000000090126352, GRID grid.7692.a, Child development and exercise center, Wilhelmina´s Children Hospital, , University Medical Center Utrecht, ; Utrecht, The Netherlands
[17
]ISNI 0000 0001 0668 7884, GRID grid.5596.f, University of Leuven, ; Leuven, Belgium
[18
]ISNI 0000000121742757, GRID grid.194645.b, The University of Hong Kong, ; Hong Kong, China
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