Johnson L E, McKee L C
J Appl Physiol. 1975 Feb;38(2):241-4. doi: 10.1152/jappl.1975.38.2.241.
Application of a particular mathematical property of time-invariant systems to experimental data obtained from injection and infusion of radioactive tracer iron in normal subjects is used to show that the generally applied assumption of time invariance to ferrokinetic systems is unjustified and may lead to substantial errors in analysis.
将时不变系统的特定数学性质应用于从正常受试者注射和输注放射性示踪铁获得的实验数据,结果表明,对铁动力学系统普遍应用的时不变假设是不合理的,可能会导致分析中出现重大误差。