1. Department of Biomedical Engineering, Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, Singapore 117583
2. Department of Biomedical Engineering, National University of Singapore, Singapore 117583
3. Department of Otolaryngology, Head and Neck Surgery, National University Health System, Singapore 119228
4. Department of Biomedical Engineering, Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, Singapore 117583; NUS (Suzhou) Research Institute (NUSRI), Wuzhong District, Suzhou City, Jiangsu 215000, China