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Article History

Received: 14 December 2019

Accepted: 13 July 2020

First Online: 22 July 2020

Ethics approval and consent to participate

: This non-randomized controlled study was approved by the Research Ethics Committee of Peking Union Medical College Hospital and was registered at clinicaltrials.gov (NCT02470221). Written informed consent was obtained from all patients.

: Not applicable.

: The authors declare that they have no competing interests.