Referring to FIG 3, {HEAD ~ another preferred embodiment} in {TAIL ~ accordance} with the present invention is shown in a cross sectional view 
in
Referring to FIG 3 , { HEAD ~ another preferred embodiment } in { TAIL ~ accordance } with the present invention is shown in a cross sectional view
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH