His research interests focus on the development and application of text-mining techniques and tools for biomedical researchers. He applies information retrieval and machine learning techniques to scientific literature and databases to help researchers to more effectively use and explore the ever-expanding biomedical literature. Aaron received an M.D. from the University of Michigan, and holds a master's degree in biomedical informatics from OHSU. Current projects include the use of automated classification systems in the process of creating systematic drug reviews, and the development and evaluation of computer assisted biomedical question answering systems.