“…[13] with the RIA kit of the Abbott Co. Factor VIII: C according to Egli [14] with artificial F VIII-deficient plasma F VIII R : Ag according to Zimmermann et al [ 15] with a rabbit antibody produced according to method of Yang et al [16] F VIII R : WF according to MacFarlaneet al [ 17] with formalin-fixed platelets F VIII R:Ag and F VIII R : WF in platelets according to Sultan et al [18] The statistical evaluation was done with the Wilcoxon signed rank test Results r and k time in TEG were significantly shortened, maximum amplitude remained unchanged. Platelet count in blood and PRP were not influenced.…”