1. Director, Andrology Center and American Center for Reproductive Medicine, Lerner College of Medicine, Cleveland Clinic, 10681 Carnegie Avenue, Desk X11, Cleveland, OH 44195, USA
2. American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA Department of Life Science and Bioinformatics, Assam University, Silchar, India
3. Aytu BioScience, Inc. Englewood, CO, USA
4. Department of Surgery, Kwong Wah Hospital, Hong Kong