What Does Potency Actually Mean for Inhaled Corticosteroids?

@article{Williams2005WhatDP,
  title={What Does Potency Actually Mean for Inhaled Corticosteroids?},
  author={Dennis Williams},
  journal={Journal of Asthma},
  year={2005},
  volume={42},
  pages={409 - 417}
}
Inhaled corticosteroids (ICSs) are the most effective anti-inflammatory agents currently available for the treatment of persistent asthma, irrespective of severity [1-5]. Although the potential for... 
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TLDR
The lack of statistical significant differences between the two preparations is proposed to indicate that the efficacy of inhaled corticosteroids delivered through different inhaler devices via standard CFC-containing preparations in current use is likely to be similar.
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