1 D Bradley McWilliams School of Biomedical Informatics, The University of Texas Health Science Center, Houston, Texas, USA Elmer.V.Bernstam@uth.tmc.edu.
2 Division of General Internal Medicine, Department of Internal Medicine, John P and Kathrine G McGovern Medical School, The University of Texas Health Science Center, Houston, Texas, USA.
3 D Bradley McWilliams School of Biomedical Informatics, The University of Texas Health Science Center, Houston, Texas, USA.