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Calculate the number 4371

NUMBERMANIA: Calculate the number 4371 using numbers [7, 5, 1, 4, 53, 839] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 35

The first user who solved this task is Manguexa Wagle.

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William Williams Keen

Born 19 Jan 1837; died 7 Jun 1932 at age 95.American physician who was the first brain surgeon in the U.S. In 1887, at St. Mary's Hospital in Philadelphia, Keen performed the first successful removal of a brain tumor in the U.S. He was the first physician to perform a decompression of the skull and also the first physician in Philadelphia to use Lister's antiseptic surgical practices. His interests included focal epilepsy and microcephaly. Keen edited Gray's anatomy in 1883 and wrote numerous articles and monographs. Keen assisted the American surgeon Joseph Bryant in removing the left upper jaw of U.S. president Grover Cleveland (1893) for a malignant tumour.

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