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Photodynamic therapy of the esophagus

Photodynamic therapy video shows light treatment for Barrett's esophagus and esophageal cancer.

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Scleral contact lenses may be an alternative to surgery for many patients with keratoconus.

Bridge with fitness ball

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Standing hip abduction exercise with resistance tubing

The standing hip abduction exercise targets the hip muscles. See how it's done.

Seated leg press with weight machine

The leg press exercise strengthens the lower body. See how it's done.

Heart Bypass Surgery

This animation shows the procedure of a heart bypass surgery.

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