Localization of organic anion transporting polypeptide 4 (Oatp4) in rat liver and comparison of its substrate specificity with Oatp1, Oatp2 and Oatp3 - Cattori, V; van Montfoort, J E; Stieger, B; Landmann, L; Meijer, D K; Winterhalter, K H; Meier, P J; Hagenbuch, B (Pflugers Arch, 2001)