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. Author manuscript; available in PMC: 2009 May 11.
Published in final edited form as: J Immunol Methods. 2006 Oct 10;317(1-2):45–55. doi: 10.1016/j.jim.2006.09.013
5000 beads were counted by the flow cytometer.
Apo – Body concentration (500 μl sample)
 = [(65,377 Apo-Bodies counted by cytometer)
  × (165 beads/μl)]/(5000 beads)
 = 2157 Apo – Bodies/μl