AUTHOR=Ma Xiao , Gao Lan , Che Siying , Tao Chaofeng TITLE=Analysis of the correlation between the dose exposure intensity and apatinib in advanced gastric cancer: a retrospective cohort study JOURNAL=Frontiers in Oncology VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1470462 DOI=10.3389/fonc.2025.1470462 ISSN=2234-943X