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Contributors TF and AK contributed to the planning for the submission. TF and AK contributed to the initial drafting of the article. RS assisted with acquiring and interpreting the pathological findings. TF, AK and RS contributed to the background research required to prepare the article. TF, AK and RS participated in editing and revision of the article.
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; externally peer reviewed.
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