About the Authors

Sean Guo-Dong Tan

Affiliation Department of Biomedical Engineering, National University of Singapore, Faculty of Engineering, Block E4, #04–08, 4 Engineering Drive 3, Singapore 117583, Singapore

Sangho Kim

Affiliation Department of Biomedical Engineering, National University of Singapore, Faculty of Engineering, Block E4, #04–08, 4 Engineering Drive 3, Singapore 117583, Singapore

Jimmy Kim Fatt Hon

Affiliation Department of Surgery, National University of Singapore, Yong Loo Lin School of Medicine, Kent Ridge Road, Singapore 119228, Singapore

Hwa Liang Leo

bielhl@nus.edu.sg

Affiliation Department of Biomedical Engineering, National University of Singapore, Faculty of Engineering, Block E4, #04–08, 4 Engineering Drive 3, Singapore 117583, Singapore

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SGDT HLL. Performed the experiments: SGDT. Analyzed the data: SGDT. Contributed reagents/materials/analysis tools: HLL SHK. Wrote the paper: SGDT HLL SHK JKFH.