TY - JOUR AU - Blechacz, B; Komuta, M; Roskams, T TI - Clinical diagnosis and staging of cholangiocarcinoma JO - Nat Rev Gastroenterol Hepatol VL - 8 PY - 2011 DO - 10.1038/nrgastro.2011.131 SP - 512 EP - 522 N1 - et al. ER -