Once validated, always validated?
Fillenbaum
Gerda G
GG
Center for the Study of Aging and Human Development, Duke University Medical Center, Durham, North Carolina, USA.
D000375:Aging / Q000502:physiology*; D004608:Eligibility Determination; D006801:Humans; D015203:Reproducibility of Results; D012944:Social Support; D012947:Social Work