Validation of Transient Elastography and Comparison with Spleen Length Measurement for Staging of Fibrosis and Clinical Prognosis in Primary Sclerosing Cholangitis. - Ehlken H; Wroblewski R; Corpechot C; Arrivé L; Rieger T; Hartl J; Lezius S; Hübener P; Schulze K; Zenouzi R; Sebode M; Peiseler M; et al. (PloS one, 2016)