{HEAD ~ These requirements} are satisfied in especially suitable manner by {TAIL ~ zwitterion buffers} of the morpholino , amino , and iminodiacetic or sulfonic acid type 
are satisfied by
{ HEAD ~ These requirements } are satisfied in especially suitable manner by { TAIL ~ zwitterion buffers } of the morpholino , amino , and iminodiacetic or sulfonic acid type
HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH