In determination operation 410, {HEAD ~ the ventilator system} determines if the response data are proper based on whether {TAIL ~ the response data} are within an acceptable range or are the same as expected ventilator system response data 
In determination operation 410 , { HEAD ~ the ventilator system } determines if the response data are proper based on whether { TAIL ~ the response data } are within an acceptable range or are the same as expected ventilator system response data
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH