I'm sure most of you know what he presents esp because he's from Mayo, but great talk:
http://webcast.jhu.edu/Mediasite/Play/0fd833143fcc4bd5954bcab801bba6da1d If that url doesnt work: http://www.icm.jhu.edu/seminars/index.php?pageid=5 and look for Christopher Chute Professor of Biomedical Informatics, Mayo Clinic College of Medicine JG
