Welcome to the Login Page Left Main & Coronary Bifurcation Summit (CBS) is hosted by Nanjing First Hospital, Nanjing Medical University, and Asian Bifurcation Club (ABC). CBS provides a dedicated platform for education and training in left main and bifurcation lesion treatments for global colleagues. For decades, upholding the spirit of Creativity, Breakthrough and Science, CBS is one of the the most open, friendly and dynamic symposiums in China, connecting interventional cardiologists from around the world.