{Reference Type}: Letter {Title}: Acquired von Willebrand syndrome secondary to lymphoproliferative disorders: A case series from two French centers. {Author}: Haddad M;Voisin J;Reynes C;Blanc-Jouvan F;Gressin R;Mansard C;Park S;Marlu R; {Journal}: Thromb Res {Volume}: 209 {Issue}: 0 {Year}: Nov 2021 22 {Factor}: 10.407 {DOI}: 10.1016/j.thromres.2021.11.013 {Abstract}: