. "1872Z"^^ . "American biochemist" . "1872-02-05Z"^^ . . . "1935Z"^^ . "Lafayette Mendel"@en . . . "1935-12-09Z"^^ . "Mendel, Lafayette B."@en . "Lafayette Benedict Mendel (February 5, 1872 \u2013 December 9, 1935) was an American biochemist known for his work in nutrition including the study of Vitamin A, Vitamin B, lysine and tryptophan."@en . . . . . . . . .