A multi-centre, open label, randomised, parallel-group, superiority Trial to compare the efficacy of URsodeoxycholic acid with RIFampicin in the management of women with severe early onset Intrahepatic Cholestasis of pregnancy: the TURRIFIC randomised trial - Hague, W M; Callaway, L; Chambers, L (BMC Pregnancy Childbirth, 2021)