title: An introduction to power and sample size estimation.
abstract: The importance of power and sample size estimation for study design and analysis.
authors.affiliation: North Manchester Hospital, Manchester, UK. steve.r.jones@bigfoot.com
authors.forename: S R
authors.initials: SR
authors.lastname: Jones
authors.forename: S
authors.initials: S
authors.lastname: Carley
authors.forename: M
authors.initials: M
authors.lastname: Harrison
mesh_terms: D000704:Analysis of Variance; D003625:Data Collection; D003955:Diagnostic Tests, Routine; D012107:Research Design; D018401:Sample Size; D012680:Sensitivity and Specificity