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Article History

Received: 22 April 2021

Accepted: 12 July 2021

First Online: 9 August 2021

Compliance with ethical standards 

:

: This was a spontaneous study conducted in conformity with World Medical Association Declaration of Helsinki for medical research involving human subjects. The study protocol is currently being evaluated by the Ethical Committee of the Second Affiliated Hospital of Xi’an Jiaotong University.

: The authors have no conflicts of interest to declare.

: The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.