I have 25 years of experience, and specialize in the field of virology with specific knowledge in the areas of ribonucleic acid (RNA) interference, microRNAs and viral vectors. I have published on such topics as HIV biology, viral microRNAs and viral pathogensis. I have testified on lentiviral vectors. I have been a professor at an university medical center since 1987. I have published over 240 manuscripts. I am on several editorial boards and have worked as a consultant with several companies. I also hold a number of patents.