| http://www.w3.org/ns/prov#value | - In some embodiments, the port is a well having an opening in the first surface of the substrate, the elastomeric block not occluding the well opening when attached to the substrate, the substrate further comprises a second surface different than the first surface of the substrate, and wherein the elastomeric block is attached to the second surface of the substrate, the first surface is a top surfa
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