LGR5 and adenocarcinoma: Table 3 presents the top 10 co-cited references, where Sato T, the first author, contributed the top two co-cited articles: “Single Lgr5 stem cells build crypt-villus structures in vitro without a mesenchymal niche” (38) with a total citation of 700, and “Long-term expansion of epithelial organoids from human colon, adenoma, adenocarcinoma, and Barrett’s epithelium” (39) with a total citation of 630.