In practice, it corresponds to a limiting value of {HEAD ~ a non pathological ventricular pause}, for example, appearing in a normal manner during a sleep phase among patients that are prone to {TAIL ~ the phenomena} of apnea 
In practice , it corresponds to a limiting value of { HEAD ~ a non pathological ventricular pause } , for example , appearing in a normal manner during a sleep phase among patients that are prone to { TAIL ~ the phenomena } of apnea
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH