Affiliation: | a Charite-University Medicine Berlin, Department of Rheumatology, Tissue Engineering Laboratories, Berlin, Germany b TransTissue Technologies GmbH, Berlin, Germany c Charite-University Medicine Berlin, Department of Pathology, Berlin, Germany d Charite-University Medicine Berlin, Tissue Engineering Laboratory and Berlin-Brandenburg Center for Regenerative Therapies, Department of Rheumatology, Berlin, Germany |