FAP and cancer: Fibroblasts with high CAF-FAP scores were clustered together and mainly accumulated in tumors, in contrast, cells with high CAF-C7 scores were enriched in adjacent areas of most cancer types (Fig. 7c; Supplementary Fig. S8a), which is consistent with tissue distribution of CAF-FAP and CAF-C7 in HCC (Fig. 4c, e).