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