Funding for this research was provided by:
National Natural Science Foundation of China (81302160)
National Key Research and Development Program of China (2017YFC0113600)
Application of Clinical Features of Beijing Municipal Science &Technology Commission, China BEIJING Special Subject (Z141107002514018)
eijing-Tianjin-Hebei Collaborative Innovation Driven Project of Beijing Municipal Science & Technology Commission (Z171100004517009)
Received: 26 April 2019
Accepted: 4 November 2019
First Online: 14 November 2019
Ethics approval and consent to participate
: The study was reviewed and approved by the Ethics Committee of Jidong Oilfield Inc. Medical Centers and Beijing Friendship Hospital, Capital Medical University. Written informed consent was obtained from all participants.
: Not applicable. Our manuscript does not contain any individual person’s data in any form (including individual details, images or videos).
: The authors declare that they have no competing interests.