Presence and function of chondroitin-4-sulfate on recombinant human soluble thrombomodulin - Nawa, K; Sakano, K; Fujiwara, H; Sato, Y; Sugiyama, N; Teruuchi, T; Iwamoto, M; Marumoto, Y (Biochem Biophys Res Commun, 1990)