VWF and platelet-type von Willebrand disease: aPTT, activated partial thromboplastin time; ATIII, antithrombin; avWD, acquired von Willebrand disease; CBC/D/Plt, complete blood count, differential, platelet count; INR, international normalised ratio; PFA-100, in vitro clotting time in platelet function analyser 100; VET, viscoelastic testing; vWD, von Willebrand disease; vWF, von Willebrand factor.