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RT @Schaef9: Measuring outdoor activity with GPS. Interesting study https://t.co/rjx166gD4h #moveoutdoors
RT @Schaef9: Measuring outdoor activity with GPS. Interesting study https://t.co/rjx166gD4h #moveoutdoors
RT @Schaef9: Measuring outdoor activity with GPS. Interesting study https://t.co/rjx166gD4h #moveoutdoors
RT @Schaef9: Measuring outdoor activity with GPS. Interesting study https://t.co/rjx166gD4h #moveoutdoors
Measuring outdoor activity with GPS. Interesting study https://t.co/rjx166gD4h #moveoutdoors