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Letter
Clarifications sought on retro-SCTL space

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Footnotes

  • Collaborators Nil.

  • Contributors RMS critically analyzed the published article, and drafted and revised the manuscript. VN drafted the manuscript. Both authors approved the final version of the manuscript.

  • 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.

  • Provenance and peer review Not commissioned; internally peer reviewed.

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