About the Authors

Feng Li

lifengwest@gmail.com

Affiliations Laboratory of Developmental Biology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China, Department of Laboratory Animal Science, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China

Mingliang Zhou

Affiliation Monell Chemical Senses Center, Philadelphia, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: FL. Performed the experiments: FL MLZ. Analyzed the data: FL. Contributed reagents/materials/analysis tools: FL MLZ. Wrote the paper: FL.