AUTHOR=Li Tao , Zhao Ying , Li Keren , Li Gong , Li Guangxin TITLE=The survival and safety of metastatic hepatocellular carcinoma treated with lenalidomide as second-line therapy: a case report and review of the literature JOURNAL=Frontiers in Oncology VOLUME=14 YEAR=2024 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2024.1461936 DOI=10.3389/fonc.2024.1461936 ISSN=2234-943X