Mergler, S.

children study fracture measurement bone mineral density density bone quality sandra palsy bw.indd 15-05-12 quality disability factor mineral z-score level group bone density people method child population ultrasound outcome impairment prevalence stiffness index result status value motor adult determinant index bone age paediatric x-ray spine bone status reference table patient neurol henderson difference stiffness pediatr research heel bone absorptiometry system femur radiogrammetry anticonvulsant movement anticonvulsant use energy x-ray absorptiometry device feasibility reference values chapter score range study population evidence growth number incidence body composition risk factors osteoporosis calcium gmfcs level v hospital health review measure pbi sds adolescent