A heparin binding domain of human von Willebrand factor. Characterization and localization to a tryptic fragment extending from aminoacid residue Val 449 to Lys 728 - Fujimura, Y; Titani, K; Holland, L Z; Roberts, J R; Kostel, P; Ruggeri, Z M; Zimmerman, T S (J Biol Chem, 1987)