1. Division for Motor Research, Pathophysiology and Biomechanics, Department for Trauma-, Hand- and Reconstructive Surgery; Jena University Hospital, Jena
2. Institute of Systematic Zoology and Evolutionary Biology with Phyletic Museum, Friedrich-Schiller-University Jena
3. Berufsgenossenschaft Nahrungsmittel und Gastgewerbe, Geschäftsbereich Prävention; Außenstelle Erfurt Germany.
4. Department of Otorhinolaryngology; Jena University Hospital; Jena