Early primary biliary cholangitis is characterised by brain abnormalities on cerebral magnetic resonance imaging by Grover, VPB, Southern, L, Dyson, JK, Kim, JU, Crossey, MME, Wylezinska-Arridge, M, Patel, N, Fitzpatrick, JA, Bak-Bol, A, Waldman, AD, Alexander, GJ, Mells, GF, Chapman, RW, Jones, DEJ, Taylor-Robinson, SD