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Pain reduction in patients after applying a nitrous oxide/oxygen mixture (Livopan) during photodynamic therapy: study protocol for an observational study (Livopan study)

Authors

  1. Correspondence to Dr Christine Fink; Christine.Fink{at}med.uni-heidelberg.de
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Citation

Gholam P, Fink C, Uhlmann L, et al
Pain reduction in patients after applying a nitrous oxide/oxygen mixture (Livopan) during photodynamic therapy: study protocol for an observational study (Livopan study)

Publication history

  • Received August 18, 2014
  • Revised January 5, 2015
  • Accepted January 19, 2015
  • First published March 30, 2015.
Online issue publication 
March 30, 2015

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