- Recombinant expression of mutations causing von Willebrand disease type Normandy: characterization of a combined defect of factor VIII binding and multimerization. Schneppenheim, R., Lenk, H., Obser, T., Oldenburg, J., Oyen, F., Schneppenheim, S., Schwaab, R., Will, K., Budde, U. Thromb. Haemost. (2004)