Efek Kurkumin Sebagai Ko-Kemoterapi Cisplatin terhadap Ekspresi Reseptor Endothelin A (ETAR) dan Gambaran Histopatologi pada Ginjal Tikus Model Kanker Ovarium = Effects of Curcumin as Cisplatin Co-Chemotherapy upon The Expression of Endothelin Receptor A (ETAR) and Histopathological Appearance in Rat’s Kidney with Ovarian Cancer