Lynn Snyder-Mackler (2 of 2) (IMAGE)

University of Delaware

Lynn Snyder-Mackler (2 of 2)

Caption

Lynn Snyder-Mackler, Ph.D promotes quadriceps exercise after knee replacement surgery. She's joined by patient T. Fraser Russell, who says after two months of rehab, he saw vast improvements.

Credit

Ambre Alexander, University of Delaware

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