| http://www.w3.org/ns/prov#value | - es, functional derivatives of the foregoing, and generally known chemotherapeutic agents such as those described in U.S. Pat. No. 5,651,986. [0060] Not only can many of these bioactive agents, including proteins, directly serve as the particles in a colloidal suspension, but they can also be mixed with biodegradable compositions or polymers to form particles.
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