Human studies: the longitudinal approach.
Di Carlo
A
A
Italian National Research Council, Firenze, Italy.
Baldereschi
M
M
Maggi
S
S
Amaducci
L
L
D000368:Aged; D000375:Aging; D005853:Geriatrics / Q000379:methods*; D006801:Humans; D008137:Longitudinal Studies