Table 1 Literature search strategy used, for example, to find articles in the Web of Science database

Web of Science

You searched for: (AB=(healthcare system OR pluralist health system OR health insurance system OR health service system OR socialized health system OR public assistance OR health insurance OR national health system OR national health service model OR social insurance model OR private insurance model OR national health service model OR social insurance model OR private insurance model OR bismarckian health insurance system OR beveridgean national health service) AND AB=(innovativeness OR innovate OR innovated OR innovates OR innovating OR innovation OR innovation s OR innovational OR innovations OR innovative OR innovator OR innovatively OR innovator s OR innovators) AND AB=(tensions OR tension OR paradox OR paradoxical OR demand OR demands OR demanding OR competing OR competition OR compete OR competes OR conflicts OR conflict OR conflicting OR contradiction OR contradictions OR contradictory OR dilemma OR dilemmas OR differentiating OR differentiate OR duality OR dualities))