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Contributors EGdCN—acquisition of data and literature review. MFG—acquisition of data and literature review. MM—acquisition of data and literature review. BMDC—acquisition of data and literature review. AMH—critical revision of manuscript for intellectual content and study supervision. FTR—critical revision of manuscript for intellectual content and study supervision.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent for publication Consent obtained directly from patient(s).
Provenance and peer review Not commissioned. Externally peer reviewed by Robert Hadden, London, UK.
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