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Twitter Marinos G Sotiropoulos @Marinos_S
Contributors MGS conceptualised and wrote the Letter.
Funding The author reports no specific grant for this work from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests The author has received research support from Mallinckrodt Pharmaceuticals, unrelated to the present work.
Patient consent for publication Not required.
Provenance and peer review Not commissioned; internally peer reviewed.
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