When i went to the season 2 wiki the release date now says Q4 can someone tell me what that is < >
Von Willebrand disease, type 2B: Introduction. Von Willebrand disease, type 2B: A rare inherited blood coagulation disorder characterized by a defect in plasma protein called the von Willebrand factor which leads to bleeding problems. Type 2 vWD is further subdivided into 4 subtypes, each with a different underlying genetic defect.
Von Willebrand disease (VWD) is a genetic disorder caused by missing or defective von Willebrand factor (VWF), a clotting protein.VWF binds factor VIII, a key clotting protein, and platelets in blood vessel walls, which help form a platelet plug during the clotting process. People with type 1 VWD have a quantitative deficiency of VWF. Levels of VWF in the blood range from 20%-50% of normal. 2  The symptoms are usually mild. 3  Type 2 VWD is found in 15%-30% of patients. 4  People with type 2 VWD have a qualitative deficiency in their VWF.