title: David Sackett was one of a kind.
authors.affiliation: Department of Population Medicine, Landmark Center, Harvard Medical School and Harvard Pilgrim Healthcare Institute, 401 Park Drive Suite 401 - East, Boston, MA 02215, USA. Electronic address: Robert_Fletcher@hms.harvard.edu.
authors.forename: Robert H
authors.initials: RH
authors.lastname: Fletcher
authors.affiliation: Department of Population Medicine, Landmark Center, Harvard Medical School and Harvard Pilgrim Healthcare Institute, 401 Park Drive Suite 401 - East, Boston, MA 02215, USA.
authors.forename: Suzanne W
authors.initials: SW
authors.lastname: Fletcher
mesh_terms: D019317:Evidence-Based Medicine / Q000193:education* / Q000266:history; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D008962:Models, Theoretical; D017720:Molecular Epidemiology / Q000193:education* / Q000266:history