From 10-7-2009 to 11-6-2009, Dr. Dunyong Tan from University of California made an academic visit to the Key Laboratory of Pathophysiology, Medical College of Jinan University. During his stay, Dr. Tan presented an academic lecture entitled Pathogenic role of delta 5 Stat5a in breast cancer to the faculty and graduate students of biomedical research. Dr. Dunyong Tan also worked in the laboratory and introduced in many advanced techniques and skills to the staffs of the lab. The two sides reached intent for further cooperation through Dr. Tan s visit.