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. 2017 May 30;12(5):e0177323. doi: 10.1371/journal.pone.0177323

Fig 1. Simplified structure of the cost-analytic model.

Fig 1

The cost-analytic model was used to assist in the calculation of a prevalence based estimate of the annual cost of heroin use disorder in the United States. Thus, only prevalent cases were included in the model. Not shown in model: Proportion of treatment applied for each chronic infectious health state.