Amplifier molecules can include {HEAD ~ a targeting group} permitting {TAIL ~ the molecules} to preferentially attach to a particular anatomical or physiological situs 
Amplifier molecules can include { HEAD ~ a targeting group } permitting { TAIL ~ the molecules } to preferentially attach to a particular anatomical or physiological situs
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH