"1945-10-15Z"^^ . "Gerald Murray Lawrie, M.D. (born 15 October 1945 in Murwillumbah, New South Wales, Australia) is an American heart surgeon and pioneer in the surgical treatment of valvular heart disease of Australian descent."@en . "Gerald Murray Lawrie"@en . "Lawrie, Gerald M."@en . . "American surgeon" . . "1945Z"^^ . .