Funding for this research was provided by:
The Bureau of Science and Information Technology of Guangzhou Municipality (2013J4500009)
The Scientific Research Project of the Guangzhou Education Bureau (1201610645)
The Key Medical Disciplines and Specialties Program of Guangzhou.
Text and Data Mining valid from 2018-05-16
Received: 18 December 2017
Accepted: 20 April 2018
First Online: 16 May 2018
Ethics approval and consent to participate
: Ethical approval was obtained from the joint Chinese University of Hong Kong-New Territories East Cluster (CUHK-NTEC) Clinical Research Ethics Committee in Hong Kong and the Institutional Review Board in Guangzhou to conduct a prospective observational study in patients with chest pain. Written informed consent was obtained from each patient after a verbal and written explanation of the study was provided. If patients were unable to give signed consent, written consent would obtained from relatives on behalf of patients. Patients were informed that they could withdraw from the study at any time.
: The authors declare that they have no competing interests.
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