As expected, it allows for {HEAD ~ the discrimination} between {TAIL ~ human differences}, including gender and personal levels of alcohol dependency 
between
As expected , it allows for { HEAD ~ the discrimination } between { TAIL ~ human differences } , including gender and personal levels of alcohol dependency
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH