AUTHOR=Evdokimova Sevindzh F. , Kornietskaya Anna L. , Bolotina Larisa V. , Kolobayev Iliya V. , Fedenko Alexander A. , Kaprin Andrey D. TITLE=Conversion surgery for stage IV gastric cancer after third-line immunotherapy: a case report JOURNAL=Frontiers in Oncology VOLUME=14 YEAR=2024 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2024.1494669 DOI=10.3389/fonc.2024.1494669 ISSN=2234-943X