Received: 1 September 2017
Accepted: 2 January 2018
First Online: 12 January 2018
: All animal procedures described in this study were conducted in accordance with the guidelines for the care and use of laboratory animals approved by National Taiwan University (ICCUC: 20,160,235). All participants provided informed written consent prior to participating in the study. The study protocol conformed to the ethical guidelines of the 1975 Declaration of Helsinki and was approved by the Ethics Committee of Taoyuan General Hospital (TYGH99025).
: No personal information is included in this study.
: The authors declare that they have no competing interests.
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