{TAIL ~ Such alternatives} are within {HEAD ~ the knowledge} of one skilled in the art and are not further detailed herein 
{ TAIL ~ Such alternatives } are within { HEAD ~ the knowledge } of one skilled in the art and are not further detailed herein
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH