Funding for this research was provided by:
the Shanghai Committee of Science and Technology (16411967600)
Major Key projects of Shanghai Chest Hospital Affiliated to Shanghai Jiao Tong University (2014YCDC20500)
Appropriate Technical Subject of Shanghai Municipal Hospital (SHDC12014241)
Received: 17 April 2018
Accepted: 13 May 2019
First Online: 31 May 2019
Ethics approval and consent to participate
: Written informed consent was waived by the Hospital Review Board.
: Not applicable.
: The authors declare that they have no competing interest.
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