A fuel cell system 14, wherein {TAIL ~ the first electrode} of {HEAD ~ each fuel cell} is in contact with reactant permeable region of the associated substrate 
A fuel cell system 14 , wherein { TAIL ~ the first electrode } of { HEAD ~ each fuel cell } is in contact with reactant permeable region of the associated substrate
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH