Older women and physical activity: using the telephone to walk.
Jarvis
K L
KL
Evans Department of Medicine, Boston Medical Center, Massachusetts, USA.
Friedman
R H
RH
Heeren
T
T
Cullinane
P M
PM
D000368:Aged; D003201:Computers; D015444:Exercise; D005260:Female; D006801:Humans; D008875:Middle Aged; D017010:Reminder Systems; D013685:Telecommunications; D013689:Telephone; D016138:Walking