Funding for this research was provided by:
Science and Technology Innovation Committee of Shenzhen (201607030)
Science and Innovation Fund of Shenzhen (JCYJ20150331142757390)
Article History
Received: 18 February 2019
Accepted: 26 August 2019
First Online: 31 August 2019
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board of Hong Kong University Shenzhen Hospital (approval number [2016]26) on April 8, 2016, and registered with the Clinical Trial Registry of China (ChiCTR-1800017696). We have obtained written informed consents from all the participants in the study.
: Not applicable.
: The authors declare that they have no competing interests.