Funding for this research was provided by:
Health and Family Planning Commission of Chengdu (2015009)
Article History
Received: 2 May 2018
Accepted: 6 August 2018
First Online: 20 August 2018
Ethics approval and consent to participate
: We obtained ethical approval for this study from the Medical and Health Research Ethics Committee in Second people’s Hospital of Chengdu. The current study was carried out according to Declaration of Helsinki. Local legal and regulatory authorities as well as the medical secrecy will be followed. If the patient has consciousness disorder or aphasia, the decision cannot be made by themselves, the consent form can be signed by the patient’s legal proxies. Prior to enrollment, each patients or their legal proxies will be given detailed information about the aims, scope and possible consequences of the trial by a physician. No diagnostic or interventional procedures required for the clinical trial. Written informed consent was obtained from all study participants or their legal proxies(516).
: Not applicable.
: The authors declare that they have no competing interests.
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