Funding for this research was provided by:
Korea Institute of Oriental Medicine (KSN2021120)
Received: 4 November 2019
Accepted: 19 May 2020
First Online: 27 May 2020
Ethics approval and consent to participate
: All procedures performed were in accordance with the ethical standards of the Korea Institute of Oriental Medicine (no. I-1708/007–003-02) and with the 1964 Helsinki declaration and its later amendments. Written informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.