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Table 4 Summary of the inclusion and exclusion criteria

From: Systematic reviews of ten pharmaceutical pricing policies – a research protocol

 Inclusion criteriaExclusion criteria
InterventionTen pharmaceutical pricing policy interventions, as specified and defined in Table 1Studies without one of the ten prespecified policy interventions
OutcomeStudies including price, volume, availability or affordability as primary outcomeStudies without one of the four primary outcomes
Study designrandomised trial, non-randomised trial, and observational studies with at least one comparator or counterfactualAll other study designs that do not include at least one comparator or specifying a counterfactual. These include case series.
CountriesAll countriesNone
SettingsAll settingsNone
Time period2004–2019 (publication date)Studies with publication date before 1 January 2004
LanguageAll languagesNone