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Improving Retention of Very Old Participants in Longitudinal Research: Experiences from the Newcastle 85+ Study
Davies K,
Kingston A,
Robinson L,
Hughes J,
Hunt JM,
et al.
(2014)
Improving Retention of Very Old Participants in Longitudinal Research: Experiences from the Newcastle 85+ Study.
PLOS ONE 9(10): e108370.
https://doi.org/10.1371/journal.pone.0108370