Article History
Received: 28 November 2021
Accepted: 28 March 2022
First Online: 18 April 2022
Declarations
:
: The authors have no conflicts of interest to declare that are relevant to the content of this article.
: Informed consent was obtained from all individual participants included in the study.<b>Ethical approval</b>The studies were approved by the Institutional Review Board of Yonsei University Severance Hospital with IRB no. 4-2016-0788 for a single patient with NSCLC and a single patient with HNSCC. All patients who participated in these studies provided written informed consent prior to enrollment and sample collection at Yonsei University Severance Hospital. The research conformed to the principles of the Helsinki Declaration.