Characteristic examples are Ravasio et al.’s single-cell analysis, which investigated the role of activated EPHA receptors in multiple carcinoma cells, providing a novel scoring system for EPHA clustering that can assay the heterogeneity of tumor cell types, and Shen et al.’s single-cell and transcriptomics study, which revealed EFNA1 as a potential prognostic marker for cervical cancer [53,54]. This evidence concerns the gene EFNA1 and neoplasm.