Upon receipt of the alarm signal, the alarm means issues an audible stimulus or a vibratory stimulus having sufficient intensity to awaken the patient as a reminder to {HEAD ~ the patient} to adjust {TAIL ~ the mask} 
to adjust
Upon receipt of the alarm signal , the alarm means issues an audible stimulus or a vibratory stimulus having sufficient intensity to awaken the patient as a reminder to { HEAD ~ the patient } to adjust { TAIL ~ the mask }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL