Text and Data Mining valid from 2018-07-03
Received: 9 February 2018
Accepted: 25 June 2018
First Online: 3 July 2018
Ethics approval and consent to participate
: According to the Declaration of Helsinki revised in 2004 and to the rules of the Ethical committee of the First Hospital of Peking University, the study was formally approved by the Ethical committee for the collection and publication of the patient’s information. And the patient was also informed of the collection of his clinical data and gave informed consent.
: Written informed consent for publication was obtained.
: The authors declare that they have no competing interests.
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