CHGA and neoplasm: The latter is in line with a recent analyses including 559 siNET patients showing that there were no statistically significant differences between male and female patients in tumor grade or serum chromogranin A (CgA) level (Blažević et al. 2022) as well as other analyses from Italy (Muscogiuri et al. 2020) and China (Fu et al. 2022).