Video encyclopedia

Oscar Ratnoff


Hillard M. Lazaarus (E'70): 2011 Distinguished Alumni Achievement Honoree


History of the Department of Medicine at CWRU and University Hospitals by Thomas Daniels, MD


History of the Department of Medicine by Thomas Daniel MD


The Caprini story video


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Oscar Davis Ratnoff was an American physician who conducted research on the process of coagulation and blood-related disorders. Ratnoff discovered the substance later known as factor XII and was one of the primary contributors to the delineation of the exact sequence that makes up the clotting cascade. He also made notable research contributions to the understanding of the complement system and to the detection and treatment of hemophilia.
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