1. Department of Robotics Engineering; DGIST-ETH Microrobot Research Center; Daegu Gyeongbuk Institute of Science and Technology (DGIST); 333, Techno jungang-daero, Hyeonpung-Myeon Dalseong-Gun Daegu 711-873 Republic of Korea
2. Department of Otorhinolaryngology-Head and Neck Surgery; Kyungpook National University School of Medicine; 680, Gukchaebosang-ro Jung-gu Daegu 700-721 Republic of Korea