title: Recruitment issues: errors of omission in dental research.
authors.forename: P
authors.initials: P
authors.lastname: Weinstein
authors.forename: P
authors.initials: P
authors.lastname: Milgrom
authors.forename: H
authors.initials: H
authors.lastname: Sanghvi
mesh_terms: D006801:Humans; D009316:National Institutes of Health (U.S.); D018579:Patient Selection; D010510:Periodontal Diseases / Q000628:therapy*; D016032:Randomized Controlled Trials as Topic / Q000379:methods*; D014481:United States