Nam, Soo Jeong http://orcid.org/0000-0001-9376-359X
Kim, Young-Hoon
Park, Ji Eun
Ra, Young-shin
Khang, Shin Kwang
Cho, Young Hyun
Kim, Jeong Hoon
Sung, Chang Ohk
Article History
Received: 18 April 2018
Accepted: 21 November 2018
First Online: 27 November 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was performed with archived paraffin-embedded tissue samples. This study was approved by the Asan Medical Center Institutional review board (approval number 2016 − 1197) and was conducted in accordance with the Declaration of Helsinki.\
: Informed consent by individual patients could not be given, as the study only included paraffin-embedded archived tissue. With the approval of the ethical committee, informed consent was not required because all patient data were anonymized.