title: Uncertainty of clinical measurements.
authors.forename: Charles W
authors.initials: CW
authors.lastname: McMonnies
mesh_terms: D006801:Humans; D017410:Practice Guidelines as Topic; D012029:Refraction, Ocular / Q000502:physiology*; D015203:Reproducibility of Results; D042262:Retinoscopy / Q000379:methods*; D014792:Visual Acuity / Q000502:physiology*