Spine Center Department of Orthopaedic Surgery Trauma Surgery and Division of Spinal Cord Injury Ruprecht-Karls-University Heidelberg 69118 Germany;
Spine Center Department of Orthopaedic Surgery Trauma Surgery and Division of Spinal Cord Injury Ruprecht-Karls-University Heidelberg 69118 Germany;
Spine Center Department of Orthopaedic Surgery Trauma Surgery and Division of Spinal Cord Injury Ruprecht-Karls-University Heidelberg 69118 Germany;