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. 2016 Mar 4;11(3):e0149856. doi: 10.1371/journal.pone.0149856

Fig 3. Causal loop diagram displaying the root causes for over- and under-utilization of IVD testing. Key drivers displayed in boxes; antecedents and secondary drivers displayed as plain text.

Fig 3

IVD, in vitro diagnostic; →(+), positive causal links amplifying the behavior of target variable.