Jeffrey F. Scherrer PhD Department of Family and Community Medicine, Saint Louis University School of Medicine, St. Louis, Missouri, USA Harry S. Truman Veterans Administration Medical Center, Columbia, Missouri, USA The Advanced HEAlth Data (AHEAD) Research Institute, Saint Louis University School of Medicine, St. Louis, Missouri, USA Department of Psychiatry and Behavioral Neuroscience, School of Medicine, Saint Louis University, St. Louis, Missouri, USA Search for more papers by this author