ESR1 and neoplasm: While earlier research predominantly explored areas such as “Micrometastases,” “Estrogen Receptor Alpha,” and “Endometrial Hyperplasia,” recent studies have shifted focus toward emerging topics, including “Ferroptosis-Related lncRNA,” “Tumor Mutation Burden,” and “PD-L1 Checkpoint Inhibition.” Subsequent biplot analysis (Figure 6B) reveals that articles in domains like Molecular Biology, Genetics, and Health, Nursing & Medicine are primarily cited by journals in Molecular Biology, Immunology, and Clinical Medicine.