About the Authors

Pengyu Guo

Contributed equally to this work with: Pengyu Guo, Wanhai Xu

Affiliation Department of Urinary Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China

Wanhai Xu

Contributed equally to this work with: Pengyu Guo, Wanhai Xu

Affiliation Department of Urinary Surgery, the Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China

Huibo Li

Affiliation Department of Gastroenterology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China

Tong Ren

Affiliation Department of Urinary Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China

Shaobin Ni

Affiliation Department of Urinary Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China

Minghua Ren

renminghua1972@163.com

Affiliation Department of Urinary Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MR PG WX. Performed the experiments: PG MR TR WX. Analyzed the data: PG HL MR SN. Contributed reagents/materials/analysis tools: PG MR HL SN. Wrote the paper: PG MR WX.