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Contributors RG and PM: planning, conduct and reporting of the work, writing the manuscript, drafting, editing, revising, final approval and literature search; guarantor. AM, VS and KM: planning, conduct and reporting of the work, drafting, editing, revising and final approval; guarantor. HK: planning, conduct and reporting of the work; guarantor.
Competing interests None declared.
Patient consent Obtained.
Provenance and peer review Not commissioned; internally peer reviewed.
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