Theodore S. Zimmerman; Hemophilia Treatment Researcher

Theodore S. Zimmerman, 51, who with a colleague developed Monoclate, a blood coagulation component essential to hemophiliacs. Before Monoclate, hemophiliacs risked treatment with impurities that led to AIDS, hepatitis and other viral infections. Zimmerman, head of the division of experimental hemostasis at the Research Institute of Scripps Clinic in La Jolla, also was noted for his work with the Von Willebrand factor, a component of platelet function and blood clotting. On Monday in La Jolla of lung cancer.