MEDLEY is an online disease citation that posts detailed information on more than 1,400 diseases and about 20,000 medical drugs under supervision by about 300 cooperating doctors. It is characterized by cooperative doctors jointly compiling, keeping up-to-date and accurate information all the time. We aim to become a medical information infrastructure indispensable to society to connect patients and their families with physicians and medical institutions that provide medical services and to realize "convincing medical care".