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. Author manuscript; available in PMC: 2015 Jun 13.
Published in final edited form as: Adv Exp Med Biol. 2014;844:201–225. doi: 10.1007/978-1-4939-2095-2_10
Ci iron content in ith compartment
vij the rate of iron in-flux from compartment j to i
vji the rate of iron out-flux from compartment i to j
vio the rate of iron flux from outside into compartment i
voi the rate of iron flux from compartment i out of the system.