Apparatus for the supply of {HEAD ~ breathable gas} cyclically at an inspiratory pressure and {TAIL ~ a lower expiratory pressure} substantially in synchronism with a patients respiration 
cyclically at
Apparatus for the supply of { HEAD ~ breathable gas } cyclically at an inspiratory pressure and { TAIL ~ a lower expiratory pressure } substantially in synchronism with a patients respiration
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH