Park, Hanaro
Han, Sungjun
Park, Sung Joon
Jung, Young Ho
Ahn, Soon-Hyun
Jeong, Woo-Jin http://orcid.org/0000-0001-8577-6964
Article History
Received: 30 March 2020
Accepted: 20 August 2020
First Online: 30 August 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This retrospective chart review study involving human participants was in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The Human Investigation Committee (Institutional Review Board) of Seoul National University Bundang Hospital approved this study.
: This study was granted waiver of informed consent to participate from the Human Investigation Committee (Institutional Review Board) of Seoul National University Bungdang Hospital. This permission is based on the following reasons:1. Obtaining informed consent is not practical in the course of research or has a significant impact on the validity of the research.2. There is no reason to presume the subject’s refusal to consent, and even if the consent is waived, the risk to the subject is extremely low.
: This study was granted waiver of informed consent from the Human Investigation Committee (Institutional Review Board) of Seoul National University Bundang Hospital. This permission is based on the following reasons:1. Obtaining informed consent is not practical in the course of research or has a significant impact on the validity of the research.2. There is no reason to presume the subject’s refusal to consent, and even if the consent is waived, the risk to the subject is extremely low.