1. Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro,
Nam-gu, Pohang, Gyeongbuk 790-784, Korea
2. Department of Electrical Engineering, Convergence IT Engineering, and Mechanical Engineering, and Medical Device Innovation Center, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro,
Nam-gu, Pohang, Gyeongbuk 790-784, Korea
3. Department of Urology, Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul 03722, Korea