. . . . . . . "1918Z"^^ . . . "Frisch, Rose"@en . . . . . . . "1918-07-07Z"^^ . . . "2015-01-30Z"^^ . "Rose Epstein Frisch (7 July 1918 \u2013 30 January 2015) was an American biologist whose work was instrumental in the discovery of leptin. She is mainly known for her work in infertility; specifically the discovery that low body fat was a contributing factor to infertility."@en . . "American biologist" . . . . . . . . "Rose Epstein Frisch"@en . . "2015Z"^^ . . .