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Yoon. Hepatoma Res 2018;4:42 I http://dx.doi.org/10.20517/2394-5079.2018.23 Page 7 of 9

of the National Research Foundation (NRF) & Korea Health Industry Development Institute (KHIDI) fund-
ed by the Korean government (MSIP&MOHW) (No. 2015M3D6A1065146).

Conflicts of interest
The author declared that there are no conflicts of interest.

Ethical approval and consent to participate
Not applicable.

Consent for publication
Not applicable.

Copyright
© The Author(s) 2018.

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