1 Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea.
2 Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
3 Tomocube Inc., Daejeon, 34051, Republic of Korea.
4 Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea. limsoo@snu.ac.kr.