As shown in Figure S3, YTHDC2 expression was significantly correlated with molecular subtypes in ACC, BRCA, COAD, HNSC, LGG, pheochromocytoma and paraganglioma (PCPG), PRAD, stomach adenocarcinoma (STAD) and UCEC. Here, YTHDC2 is linked to hereditary pheochromocytoma-paraganglioma.