{TAIL ~ Paramagnetic agents} have {HEAD ~ a distribution} that is relatively easily shown through Magnetic Resonance Imaging  
{ TAIL ~ Paramagnetic agents } have { HEAD ~ a distribution } that is relatively easily shown through Magnetic Resonance Imaging
TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH