1. State Key Laboratory of Software Development Environment, Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Research Institute of Beihang University in Shenzhen, Beihang University, Beijing, China
2. Department of Biomedical Engineering, Tsinghua University, Beijing, China
3. Microsoft Research, Beijing, China