| http://www.w3.org/ns/prov#value | - Although the use of ultasound as a means of rupturing or otherwise deforming the microspheres and foam of the present invention, so as to cause release of the active ingredient contained therein, especially a therapeutic agent, is a preferred embodiment, it will be apparent to the artisan in light of the instant disclosure, that other means and forms of energy can be utilized to accomplish the sam
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