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Solomon Aaron Berson was an American physician and scientist whose discoveries, mostly together with Rosalyn Yalow, caused major advances in clinical biochemistry.
Born in New York City, Berson was a keen musician and chess player. He graduated from the City College of New York in 1938. After failing to obtain a place in medical school he earned an MSc and an anatomy instructorship at New York University before finally securing a place in NYU medical school in 1941. He completed his degree in 1945, and after internships in Boston and two years in the army he returned to New York to do an internal medicine residency at the Bronx Veterans Affairs Hospital.
His scientific work started in 1950, when he became a member of the Radioisotope Service of the hospital, where he teamed with Rosalyn Yalow in what eventually became an historic research parthership. He also set up a thyroid service, where his approach was felt lastingly. Their early laboratory work concerned iodine and human serum albumin metabolism, but later on in the decade they shifted their focus to insulin, a hormone which was difficult to measure in the blood. They developed the radioimmunoassay, which gave very good results, and published their findings in 1960.
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