Although PROBIOPLEX contains ingredients other than concentrated immunologically active immunoglobulins, these other ingredients are {HEAD ~ optional components} of {TAIL ~ the invention} 
of
Although PROBIOPLEX contains ingredients other than concentrated immunologically active immunoglobulins , these other ingredients are { HEAD ~ optional components } of { TAIL ~ the invention }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL