Funding for this research was provided by:
National Natural Science Foundation of China (No.81700837)
Natural Science Foundation of Hunan Province Project (No. 14JJ3041)
Department of Science and Technology, Hunan (No. 2015TP2007)
Text and Data Mining valid from 2019-06-11
Received: 8 October 2018
Accepted: 4 June 2019
First Online: 11 June 2019
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Second Xiangya Hospital Ethics Committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Written consents have been obtained from all adult individuals included in the study. Written consent has been obtained from the mother of the individual under 18 yrs. in the study.
: Verbal consents for publication from the patients were obtained by phone, because when prepare the publication all the patients and their family members have left our hospital and returned home. Likewise, verbal consent for publication of the patient who is under 18 yrs. was obtained from her parent (her mother). The Second Xiangya Hospital Ethics Committee has approved the procedure performed in this study.
: The authors declare that they have no competing interests.