Funding for this research was provided by:
Medical and health science and technology project in Guangzhou (20171A011354)
Article History
Received: 28 June 2018
Accepted: 29 November 2018
First Online: 13 December 2018
Ethics approval and consent to participate
: The sample collection procedures were explained to all patients. Written informed consent was obtained from all patients. The principles outlined in the Declaration of Helsinki of 1975 (revised in 1983 and 1989) were followed throughout the study period. The study was approved by both the Ethics Committee of The Sixth People’s Hospital of Nansha, Guangzhou (reference number is No: 20130821057P) and the Ethics Committee of The Kingmed Diagnostics Center of Guangzhou (KM20130149).
: Not applicable.
: The authors have declared that no competing interests exist.
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