The bag design includes {HEAD ~ a transfer set} that can be sterilely welded to {TAIL ~ the source} of the mammalian cells 
sterilely welded to
The bag design includes { HEAD ~ a transfer set } that can be sterilely welded to { TAIL ~ the source } of the mammalian cells
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH