Efek Kurkumin Sebagai Ko-Kemoterapi Cisplatin terhadap Ekspresi Reseptor Endotelin B (ETBR) dan Gambaran Histopatologi pada Ginjal Tikus Model Kanker Ovarium yang Diinduksi 7,12-dimethylbenz[a]anthracene (DMBA) = Effects of Curcumin as Cisplatin Co-Chemotherapy upon The Expression of Endothelin Receptor B (ETBR) and Histopathological Appearance in Rat’s Kidney with Ovarian Cancer