The method comprises {TAIL ~ the steps} of incubating the cells in a dynamically or controlled environment which is maintained in a desired condition and in which the cells can be examined while the environment is dynamically controlled and maintained in {HEAD ~ the desired condition} 
The method comprises { TAIL ~ the steps } of incubating the cells in a dynamically or controlled environment which is maintained in a desired condition and in which the cells can be examined while the environment is dynamically controlled and maintained in { HEAD ~ the desired condition }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD