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Footnotes
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Contributors GL: participated in study design and supervision; data acquisition, analysis and interpretation; and drafting, revision and final approval of the report; PV: participated in data acquisition, analysis and interpretation; drafting, revision and final approval of the manuscript; CK and KA: participated in data acquisition; drafting, revision and final approval of the manuscript; CS and DP: participated in study supervision; data interpretation; and drafting, revision and final approval of the report; DV: participated in study conception, design and supervision; data acquisition, analysis and interpretation; and drafting, revision and final approval of the report.
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Funding Special Account for Research Grants (SARG), National and Kapodistrian University of Athens, Athens, Greece.
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Competing interests None.
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Ethics approval Institutional Review Board, Hippokration General Hospital.
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Provenance and peer review Not commissioned; externally peer reviewed.