{TAIL ~ The apparatus} 5, comprising an automated optical observation system for detecting and enumerating {HEAD ~ the immobilized entities} 
{ TAIL ~ The apparatus } 5 , comprising an automated optical observation system for detecting and enumerating { HEAD ~ the immobilized entities }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD