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