Due will mark as
who is keith black?
what did he contribute?
what did he do that made him an important black person in history?

Who is Keith L. Black? (born September 13, 1957) He is an American neurosurgeon specializing in the treatment of brain tumors and a prolific campaigner for funding of cancer treatment. He is chairman of the neurosurgery department and director of the Maxine Dunitz Neurosurgical Institute at.

What did he contribute? After serving his internship and residency at the University of Michigan, in 1987 he moved to the UCLA Medical Center in Los Angeles,[5] where he later became head of UCLA's Comprehensive Brain Tumor Program. In 1997, after 10 years at UCLA, he moved to Cedars-Sinai Medical Center[6] to head the Maxine Dunitz Neurosurgical Institute.[1] He was also on the faculty of the University of California, Irvine School of Medicine from 1998 to 2003.[4][7] In 2007 he opened the new Johnnie L. Cochran Jr. Brain Tumor Center at Cedars-Sinai, a research center named after the famous lawyer who had been Black's patient and supporter.

What he do? In 1997, Time magazine featured Black on the cover of a special edition called "Heroes of Medicine".[15][16] The accompanying article described Black's reputation as a surgeon who would operate on tumors that other doctors would not, as well as aspects of his medical research, including his discovery that the peptide bradykinin can be effective in opening the blood–brain barrier