For example, {HEAD ~ the internal diameter} of the tubular body or {TAIL ~ cannula} is normally in the range of 5 to 20 mm., or more, although other sizes such as larger oval shapes may be employed, if desired 
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For example , { HEAD ~ the internal diameter } of the tubular body or { TAIL ~ cannula } is normally in the range of 5 to 20 mm . , or more , although other sizes such as larger oval shapes may be employed , if desired
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH