About the Authors

Norman P. Li

normanli@smu.edu.sg

Affiliation Singapore Management University, Singapore, Singapore

Amy J. Y. Lim

Affiliation Singapore Management University, Singapore, Singapore

Ming-Hong Tsai

Affiliation Singapore Management University, Singapore, Singapore

Jiaqing O

Affiliation Australian National University, Canberra, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NPL AJYL. Performed the experiments: AJYL. Analyzed the data: NPL M-HT. Contributed reagents/materials/analysis tools: NPL M-HT. Wrote the paper: NPL AJYL M-HT JO.