This supplementary issue in English of the Chinese Journal of Internal Medicine is intended to serve as an international medium for physicians who are interested in internal medicine in China. The Chinese Journal of Internal Medicine is directed by the executive committee of the Chinese Society of Internal Medicine and first appeared in 1953 in Beijing.It has been listed in the Index Medicus and other 7 international retrieval systems. Regular contributions come from all over the country and their scope covers widely such specialties as endocrinology, cardiology,neurology,rheumatology,gastroenterology, communicable and parasitic iseases,hematology,nephrology, and respirology. The journal has been published monthly in Chinese since 1955. Its editorial board consists of 62 members and has 87 reviewers in different specialties. The journal has been awarded prizes in different occasions in China for its contributions to the development of internal medicine.