George King Bio-Medical is a worldwide leader in hemostasis and coagulation products! These reagents are used by many of the most respected and renowned hemostasis and coagulation laboratories in the world. Email: [email protected] 800-255-5108 (USA and Canada) Tel +1 913-469-5464 Located in Overland Park KS USA Coagulation factor deficient plasmas from human donors with a congenital coagulation factor deficiency. Normal and abnormal Controls. These coagulation reagents are fresh frozen plasmas from human donors. For additional information call 800-255-5108 or 913-469-5464.