Funding for this research was provided by:
National Natural Science Foundation of China (81071781, 82476890)
Received: 9 January 2017
Accepted: 7 December 2017
First Online: 6 February 2018
Change Date: 11 May 2020
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via the original article.
Ethics approval and consent to participate
: The methods were carried out in accordance with the approved guidelines. This study was approved by written consent from the ethical committee of the Beijing Aviation General Hospital. Relevant informed consent was obtained from all participants.
: Not applicable.
: The authors declare that there are no competing interest regarding to publishing this paper.