Histopathological alterations, endothelial nitric oxide synthase (eNOS) and oxidative stress in placentas from women with intrahepatic cholestasis of pregnancy undergoing intracytoplasmic sperm injection as compared to natural conception

eNOS, oxidative stress and ICP内皮型一氧化氮合酶（endothelial nitric oxide synthase, eNOS）、氧化应激（oxidative stress）及颅内压（Intracranial Pressure, ICP）