{HEAD ~ The present invention} provides {TAIL ~ an improved surgical port} which comprises a totally flexible grommet like structure 
provides
{ HEAD ~ The present invention } provides { TAIL ~ an improved surgical port } which comprises a totally flexible grommet like structure
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH