http://www.w3.org/ns/prov#value | - In another preferred embodiment, the platen may further comprise an attachment surface suitable for attaching the platen to a base or other surface, and connected to the microprotrusion surface by the platen edge. [0044] The length and thickness of the microprotrusions are selected based on the particular substance being administered and the thickness of the stratum corneum in the location where t
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