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Contributors MR drafted and finalised the manuscript as submitted.
Funding MR has received support from The Determinants to Reduce Health Inequity Via Early Childhood, Realising Fair Employment, and Social Protection (DRIVERS) research project coordinated by EuroHealthNet and funded by the European Commission Seventh Framework Programme grant, 278350.
Competing interests None declared.
Patient consent for publication Not required.
Provenance and peer review Commissioned; internally peer reviewed.
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