{HEAD ~ The apparatus} comprises {TAIL ~ a mechanism} for incubating cells having a dynamically controlled environment in which the cells are grown, which are maintained in a desired condition and in which cells can be examined while the environment is dynamically controlled and maintained in the desired condition 
comprises
{ HEAD ~ The apparatus } comprises { TAIL ~ a mechanism } for incubating cells having a dynamically controlled environment in which the cells are grown , which are maintained in a desired condition and in which cells can be examined while the environment is dynamically controlled and maintained in the desired condition
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