ANPEP and neoplasm: Tumour epithelial cells were further reclustered into two distinct subclusters (Subcluster 1 and Subcluster 2), and DUSP9 was predominantly expressed in Subcluster 1, which was enriched with other oncofetal and stemness‐related genes such as AFP, GPC3, IGF2, ANPEP and EPCAM (Figure 3J).