About the Authors

Xiaona Liu

Affiliations Chinese PLA (People's Liberation Army) Medical School, Beijing, P.R. China, Department of Ultrasound, Binzhou Medical University Hospital, Binzhou, Shandong, P.R. China

Na Li

Affiliations Chinese PLA (People's Liberation Army) Medical School, Beijing, P.R. China, Department of Auxiliary Diagnosis, The 463rd Hospital of Shenyang Military Region, Shenyang, Liaoning, P.R. China

Chaoyang Wen

wency304@163.com

Affiliations Chinese PLA (People's Liberation Army) Medical School, Beijing, P.R. China, Department of Ultrasound, The First Affiliated Hospital of Chinese PLA General Hospital, Beijing, P.R. China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: CW XL NL. Data curation: XL CW. Formal analysis: XL CW. Funding acquisition: XL CW. Investigation: XL NL. Methodology: CW XL NL. Project administration: CW. Supervision: CW. Validation: CW XL NL. Visualization: XL CW. Writing – original draft: XL CW. Writing – review & editing: XL CW.