It has now been found that these metals exert in the form of {HEAD ~ metal ion concentrations} only of {TAIL ~ the order} of about 1×10 6 M a profound bactericidal effect 
of
It has now been found that these metals exert in the form of { HEAD ~ metal ion concentrations } only of { TAIL ~ the order } of about 1×10 6 M a profound bactericidal effect
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH