Affiliation: | a Department of Plastic and Hand Surgery, University of Erlangen, Erlangen, Germany b Department of Pathology, University of Erlangen, Erlangen, Germany c Department of Hand Surgery, Vulpius Klinik, Bad Rappenau, Germany d Medical Faculty Mannheim, University of Heidelberg, Heidelberg, Germany e Department of Trauma and Reconstructive Surgery, University of Rostock, Rostock, Germany f Department of Hand, Plastic and Reconstructive Surgery, Burn Center, BG Trauma Center Ludwigshafen, Plastic and Hand Surgery, University of Heidelberg, Ludwigshafen, Germany g Spine Centre, Hirslanden-Clinic, St Anna Hospital, Lucerne, Switzerland |