title: Mark McClellan.
authors.forename: Mark
authors.initials: M
authors.lastname: McClellan
mesh_terms: D055317:Evidence-Based Practice / Q000191:economics* / Q000639:trends; D018166:Health Care Reform; D006292:Health Priorities; D014481:United States; D014486:United States Food and Drug Administration / Q000191:economics* / Q000639:trends