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Entonox as an analgesic agent
  1. S Sandramouli,
  2. M Kurli
  1. Wolverhampton and Midland Counties Eye Infirmary, Compton Road, Wolverhampton WV3 9QR, UK
  1. Correspondence to: Mr S Sandramouli; smouli{at}

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We read with great interest the paper on Entonox as an analgesic agent by Cook et al.1 We congratulate the authors for their work. However, we would like to clarify certain aspects of the study.

We recently performed a randomised, placebo controlled, double blind study with 100 patients on the analgesic effect of Entonox for pain relief …

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