Retrospective Study
Copyright ©The Author(s) 2022.
World J Gastroenterol. Nov 7, 2022; 28(41): 5982-5992
Published online Nov 7, 2022. doi: 10.3748/wjg.v28.i41.5982
Figure 1
Figure 1 Distribution of first and second primary cancers of multiple primary cancers. A: The first primary cancer; B: The second primary cancer.