In certain embodiments, {HEAD ~ the invention} provides {TAIL ~ one or more systems}, methods, and heaters 
provides
In certain embodiments , { HEAD ~ the invention } provides { TAIL ~ one or more systems } , methods , and heaters
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH