| http://www.w3.org/ns/prov#value | - Lamina 20, in one embodiment, is a composite comprising at least two materials blended to form a semipermeable lamina that is, (e) permeable to the passage of an external fluid, (f) substantially impermeable to the passage of agent and compound present in the compartment, (g) maintains its physical and chemical integrity in the presence of agent and more particularly is substantially non-erodible
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