Stephen, Michael J.: - Dr. Michael J. Stephen is an associate professor at Thomas Jefferson University in Philadelphia, and director of the Adult Cystic Fibrosis Center. He is a leader of numerous clinical trials and was on the front line caring for COVID-19 patients. Over the past two decades he has studied advanced end-stage lung diseases and worked with patients at diverse locales, including a Massachusetts prison hospital and a pediatric HIV clinic in Cape Town, South Africa. A graduate of Brown University and Boston University Medical School, he lives in New Jersey.