The method 1 further comprising releasing the elastase from the leukocytes by adding {HEAD ~ a leukocyte membrane perturbating agent} to the mixture of {TAIL ~ step} a) 
The method 1 further comprising releasing the elastase from the leukocytes by adding { HEAD ~ a leukocyte membrane perturbating agent } to the mixture of { TAIL ~ step } a )
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH