Histopathological examinations
At first, the endometriotic implants and ovaries were stored in 10% formalin solution. Hematoxylin and eosin (H & E) staining was used for histological examination. Immunostaining with primary antibodies including VEGF, CD117, and Bax were used for immunohistochemical (IHC) examination. The histological and IHC examinations were evaluated by same author who was blinded for the study drugs (H.O.).