1. Jaehoon Yang, Urban Computing Innovation Lab, Advanced Institute of Convergence Technology, Yeongtong-gu, Suwon, Gyunggi-do, South Korea.
2. Eungdo Kim (corresponding author), Department of Biomedical Convergence, Chungbuk National University, Cheongju 28644, South Korea; Department of R&D Planning and Support, Chungbuk National University Hospital, Cheongju 28644, South Korea.