The CeRA is a Center of Excellence for research and clinical service in andrology and reproduction. Its research is dedicated to solve important questions in basic reproductive functions and clinical applications, providing benefits for patients at the earliest opportunity. Scientists and physicians combine their multi-disciplinary expertise in reproductive medicine/biology and molecular reproductive physiology. Additional expertise from physics, chemistry, gynecology, human genetics and stem cell research are added to elucidate the basic principles of fertilization. Moreover, translational and clinical studies are performed to develop novel treatments for human fertility disorders, the control and maintenance of reproductive functions, and the generation of cells and gametes for therapeutic procedures. CeRA consists of the Institute of Reproductive and Regenerative Biology and the Department of Clinical and Surgical Andrology.