An apparatus for using imaging to measure the migration of at least one cell located in at least one container having {TAIL ~ a plurality} of {HEAD ~ cells} in response to at least one stimulus comprising: 
An apparatus for using imaging to measure the migration of at least one cell located in at least one container having { TAIL ~ a plurality } of { HEAD ~ cells } in response to at least one stimulus comprising :
OTH OTH 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 HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH