AUTHOR=Wang Jian , Dong Xinying , Liu Yangxin , Lin Keying , Chen Jianxin TITLE=Copy number gain of MET gene with low level in a metastatic lung adenocarcinoma patient represents response to salvage treatment with savolitinib and osimertinib: a case report JOURNAL=Frontiers in Oncology VOLUME=Volume 15 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1507677 DOI=10.3389/fonc.2025.1507677 ISSN=2234-943X