A heparin-binding domain of human von Willebrand factor. Characterization and localization of a tryptic fragment extending from ammoniated residue Val – 449 and Lys – 728 - Fujimura, Y; Titani, K; Holland, LZ; Robbers, JR; Hostel, P; Ruggeri, ZM; Zimmerman, TS (J Biol Chem, 1987)