Jee, Yongho
Kim, Youngwon
Jee, Sun Ha
Ryu, Mikyung
Funding for this research was provided by:
the National R&D Program for Cancer Control, Ministry of Health & Welfare, Republic of Korea (1631020)
Article History
Received: 25 February 2018
Accepted: 4 June 2018
First Online: 19 June 2018
Ethics approval and consent to participate
: Because the study involved routinely collected medical data, participant consent was not specifically obtained. The study was approved by the institutional review boards of Yonsei University.
: The authors declare that we have no competing interests.
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