1. Department of Mechanical Engineering and Laboratory for Computational Sensing and Robotics, Johns Hopkins University, Baltimore, MD, USA
2. Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, China
3. Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Hospital, Washington, DC, USA
4. Department of Computer Science and Laboratory for Computational Sensing and Robotics, Johns Hopkins University, Baltimore, MD, USA