| http://www.w3.org/ns/prov#value | - Thus, the rate of release of a drug may act as a control quantity for the rate of degradation. [0090] In a preferred embodiment, release of the therapeutic agents from the stent may also be stimulated by a variety of methods, including electrical or mechanical stimulation, such as heat or ultrasound energy. [0091] In an alternative embodiment, the balloon may also be coated with a drug.
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