{HEAD ~ A multilayer integrated assembly} for effecting {TAIL ~ fluid handling functions} includes complementary microstructures formed by an etching or similar process in a planar foldable substrate 
{ HEAD ~ A multilayer integrated assembly } for effecting { TAIL ~ fluid handling functions } includes complementary microstructures formed by an etching or similar process in a planar foldable substrate
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH