County public hospitals as teaching hospitals—Harbor–UCLA Medical Center and Olive View–UCLA Medical Center—as well as the largest private nonprofit hospital on the west coast, Cedars-Sinai Medical Center. The Greater Los Angeles VA Medical Center is also a major teaching and training site for the university.
The UCLA Medical Center made history in 1981 when Assistant Professor Michael Gottlieb first diagnosed AIDS. UCLA medical researchers also pioneered the use of positron emission tomography (PET) scanning to study brain function. Professor of Pharmacology Louis Ignarro was one of the recipients of the 1998 Nobel Prize in Physiology or Medicine for discovering the signaling cascade of nitric oxide, one of the most important molecules in cardiopulmonary physiology. The U.S. News & World Report Best Hospitals ranking for 2021 ranks UCLA Medical Center 3rd in the United States and 1st in the West. UCLA Medical Center was ranked within the top 20 in the United States for 15 out of 16 medical specialty areas examined.
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