title: Executive summary? All about validating scales and stages.
authors.forename: Paul G
authors.initials: PG
authors.lastname: McDonough
mesh_terms: D000375:Aging / Q000502:physiology*; D005260:Female; D006801:Humans; D015203:Reproducibility of Results; D018456:Reproductive Medicine / Q000379:methods*; D012727:Sex Characteristics