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