[1] Univ Bern, ARTORG Ctr Biomed Res, CH-3008 Bern, Switzerland
[2] Univ Bern, Inselspital, Dept ENT Head & Neck Surg, CH-3008 Bern, Switzerland
[3] Univ Bern, VetSuisse Fac, CH-3008 Bern, Switzerland
[4] CSEM, Swiss Ctr Elect & Microtechnol, Neuchatel, Switzerland
[5] Univ Bern, Inst Surg Technol & Biomech, Inselspital, CH-3008 Bern, Switzerland
[6] Univ Bern, Inst Pathol, Inselspital, CH-3008 Bern, Switzerland
[7] Univ Bern, Dept Neurol, Inselspital, ENMG Stn, CH-3008 Bern, Switzerland