STUDIES ON THE ACTION OF HAGEMAN FACTOR: EVIDENCE THAT ACTIVATED HAGEMAN FACTOR IN TURN ACTIVATES PLASMA THROMBOPLASTIN ANTECEDENT*

Abstract

Wright (16). M.W. and B.Y. were bled in New York and their frozen plasma carried to Cleveland, while G.P. was bled at different times in New York or Cleveland. The identity of the defect in the three patients with PTA deficiency has been confirmed by both Dr. Robert Rosenthal (17) and ourselves