In some cases advantageous images comprise fine lines of {HEAD ~ widths} not greater than {TAIL ~ 50 micrometers}, even more preferably not greater than 25 micrometers 
not greater than
In some cases advantageous images comprise fine lines of { HEAD ~ widths } not greater than { TAIL ~ 50 micrometers } , even more preferably not greater than 25 micrometers
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH