About the Authors

Lijian Xie

Contributed equally to this work with: Lijian Xie, Elim Man

Affiliations Shanghai Children’s Hospital, Shanghai Jiaotong University, Shanghai, China, Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China

Elim Man

Contributed equally to this work with: Lijian Xie, Elim Man

Affiliation Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China

Pik-to Cheung

Affiliation Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China

Yiu-fai Cheung

xfcheung@hku.hk

Affiliation Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China

Competing Interests

The authors have declared that no competed interests exist.

Author Contributions

Conceived and designed the experiments: YFC PTC. Performed the experiments: LJX EM. Analyzed the data: LJX EM PTC YFC. Contributed reagents/materials/analysis tools: EM PTC YFC. Wrote the paper: LJX EM PTC YFC.