Severo Ochoa
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Portrait of Severo Ochoa, MD (1905-1993). Dr. Ochoa was appointed Research Associate at New York University School of Medicine in 1942, after which he became Assistant Professor of Biochemistry (1945), Professor of Pharmacology (1946), Professor of Biochemistry (1954), and Chairman of the Department of Biochemistry. Dr. Ochoa was the recipient of the Nobel Prize in Physiology or Medicine in1959 for his discoveries in biochemical genetics and nucleic acids.