Article History
Received: 2 September 2019
Accepted: 16 January 2020
First Online: 27 January 2020
Compliance with ethical standards
: The study protocol was conducted according to ethic approval from the Institutional Animal Care and Use Committee of the Taipei Medical University, Taipei, Taiwan (approval no. LAC-2016-0174) under ARRIVE guidelines [].
: The authors declare that they have no conflict of interest.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.
: For this type of study, formal consent is not required.