Cross-sectional MRI scans of the legs of a 40 year old triathlete vs a 74 year old triathlete vs a 74 year old sedentary person 

Cross-sectional MRI scans of the legs of a 40 year old triathlete vs a 74 year old triathlete vs a 74 year old sedentary person 

Tags: health images x-ray sports 71 notes| Feb 6, 2012
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