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Acknowledgements We acknowledge the contributorship of the patient, patient’s family and colleagues of the Institute of Neurology, National Hospital of Sri Lanka.
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 the patient(s).
Provenance and peer review Not commissioned; externally peer reviewed by Jeremy Chataway, London, UK.
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