Funding for this research was provided by:
Research Grant Council General Research Fund (HKU-17613815)
Text and Data Mining valid from 2018-08-29
First Online: 29 August 2018
Compliance with ethical standards
: All procedures performed were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: The authors declare that the research was conducted without any commercial or financial relationships that could be construed as a conflict of interest.
: The current study was approved by the Institutional Review Board in the Chang Gung Memorial Hospital.
: Informed consent was obtained from all individual participants included in the study.