[1] KIST, Ctr Biomat, Seoul 02792, South Korea
[2] Seoul Natl Univ Hosp, Dept Otorhinolaryngol Head & Neck Surg, Seoul 03080, South Korea
[3] Cornell Univ, Meinig Sch Biomed Engn, Ithaca, NY 14853 USA
[4] Yonsei Univ Hlth Syst, Severance Cardiovasc Hosp, Seoul 03722, South Korea
[5] KIST, Ctr Neurosci, Seoul 02792, South Korea
[6] Korea Adv Inst Sci & Technol, Dept Mech Engn, Daejeon 34141, South Korea
[7] UST, Div Biomed Sci & Technol, Seoul 02792, South Korea