In the early years of the 21st century, the School of Medicine underwent rapid construction to further expand teaching and clinical opportunities. The Li Ka Shing Center for Learning and Knowledge opened in 2010; it serves as the gateway to the School of Medicine as well as providing a new model of medical education by combining biomedical research with clinical education and information technology. The Lorry I. Lokey Stem Cell Research Building also opened in 2010; it is the largest stem cell and regenerative medicine facility in North America. The Stem Cell Research Building is the first of the planned Stanford Institutes of Medicine. In addition to research facilities, it houses offices for faculty from the Stanford Cancer Center and "hotel space" offices for visiting researchers.