title: Sample size for clinical trials.
authors.affiliation: National Institute of Dental and Craniofacial Research (NIDCR), National Institutes of Health (NIH), Bethesda, MD, USA.
authors.forename: M
authors.initials: M
authors.lastname: Billings
authors.affiliation: National Institute of Dental and Craniofacial Research (NIDCR), National Institutes of Health (NIH), Bethesda, MD, USA.
authors.forename: G
authors.initials: G
authors.lastname: Lopez Mitnik
authors.affiliation: National Institute of Dental and Craniofacial Research (NIDCR), National Institutes of Health (NIH), Bethesda, MD, USA.
authors.forename: B A
authors.initials: BA
authors.lastname: Dye
mesh_terms: D002986:Clinical Trials as Topic; D006801:Humans; D012107:Research Design; D018401:Sample Size