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Contributors DGG planned the study. MACS and AJMJ did the clinical history, treated the patient and collected the images. DGG critically revised the manuscript and reviewed the bibliography. AJMJ wrote the manuscript and submitted the study.
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 Obtained.
Provenance and peer review Not commissioned; internally peer reviewed.
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