PERLZWEIG, WILLIAM ALEXANDRE (1891–1952), U.S. biochemist. Born in Ostrog, Russia, Perlzweig was taken to the U.S. in 1906. He worked at the Rockefeller Institute for Medical Research. In 1917 he served in the U.S. Army Sanitary Corps. From 1930 he was professor of biochemistry and nutrition at the Duke University Medical School, Durham, North Carolina. He contributed a great number of papers in the field of vitamins and clinical chemistry.