On October 15,2013, Dr. Gu Jun,a tenuredsenior research investigator fromWadsworth Center, New York State Department of Health, was invited to give a speech in the School of Pharmacy，University of Jiangsu.The talk was entitled "The rolesof drug-metabolizing enzymes in human diseases".After the speech, Dr. Gu also shared his experiences of study and life in the US. He answered some issues related to study in the US.The Seminar was hosted by Dr. Wei Yuan. More than 100students and teachers participated inthis event.