PRDM9 and granular cell tumor: How do other epidrugs, such as inhibitors against histone demethylases (HDMi; JIB‐04), histone methyltransferases (HMTi; GSK343), E3 ubiquitin ligases (E3‐ULi; PRT4165), and bromodomain‐containing proteins (BRDi, MZ‐1, and LP99), affect CD24 expression in GCT cell lines (for IC50 concentrations, see Fig. S2E)?