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