A major medical institution is a large healthcare facility that provides a wide range of services, including emergency care, specialized treatments, and research. These institutions often have advanced technology and highly trained staff, including doctors, nurses, and researchers, to ensure patients receive the best possible care. They may also offer educational programs for medical students and residents. Many major medical institutions are affiliated with universities, allowing them to conduct important medical research and clinical trials. This research can lead to new treatments and therapies for various diseases. Examples of such institutions include Mayo Clinic, Cleveland Clinic, and Johns Hopkins Hospital.