Article History
Received: 20 December 2019
Accepted: 19 February 2020
First Online: 28 February 2020
Ethics approval and consent to participate
: The present study was approved by the Institutional Ethics Review Board of China-Japan Union hospital. The research has been carried out in accordance with the World Medical Association Declaration of Helsinki. All patients and healthy volunteers provided written informed consent prior to their inclusion within the study.
: Not applicable.
: The authors declare that they have no competing interests.