Dr. Jean Bennett watches Alisha Bacoccini's eye movements and reaction to light as they are recorded on a computer during a test at the UPenn Hospital, in Philadelphia, PA on Monday, June 23, 2008. Bacoccini is undergoing an experimental gene therapy trial to improve her sight.
- Stephen Voss
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- Contained in galleries
- Gene Therapy - Corey Haas, Jean Bennett, Albert Maguire