{HEAD ~ Microstructures} are contemplated as including channels , apertures, {TAIL ~ conduit apertures}, sample processing compartments, and the like 
are contemplated as including
{ HEAD ~ Microstructures } are contemplated as including channels , apertures , { TAIL ~ conduit apertures } , sample processing compartments , and the like
HEAD HEAD HEAD HEAD HEAD REL REL REL REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH