sentences:  In May 1997, Olive View–UCLA Medical Center became a part of ValleyCare, which maintains responsibility for the care of the medically indigent, low income, uninsured residents of the San Fernando and Santa Clarita Valleys.Olive View–UCLA Medical Center has an affiliation with the David Geffen School of Medicine at UCLA, offering residency programs in major specialty areas as well as providing an on-campus School of Nursing.It is also a rotation site for medical students at UCLA.