{HEAD ~ A study} of the respective flow and pressure traces reveals {TAIL ~ asynchrony} following the third, fourth, fifth and sixth transitions from IPAP to EPAP 
reveals
{ HEAD ~ A study } of the respective flow and pressure traces reveals { TAIL ~ asynchrony } following the third , fourth , fifth and sixth transitions from IPAP to EPAP
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH