1. Clinical Laboratory for Bionic Extremity Reconstruction, Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Vienna;
2. Division of Anatomy, Center for Anatomy and Cell Biology, Medical University of Vienna, Vienna, Austria;
3. Department of Hand-, Plastic- and Reconstructive Surgery, Burn Center, BG Trauma Center Ludwigshafen, University of Heidelberg, Ludwigshafen, Germany; and
4. Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Vienna, Vienna, Austria