Executive summary? All about validating scales and stages.
den Tonkelaar
Isolde
I
Broekmans
Frank J
FJ
de Boer
Evelien J
EJ
te Velde
Egbert R
ER
D000375:Aging / Q000502:physiology*; D005260:Female; D006801:Humans; D015203:Reproducibility of Results; D018456:Reproductive Medicine / Q000379:methods*; D012727:Sex Characteristics