Normal values for <a href="https://en.wikipedia.org/wiki/Peak_flow_meter" class="extiw" title="en:Peak flow meter">peak expiratory flow</a> (PEF)
<a href="//commons.wikimedia.org/wiki/User:Mikael_H%C3%A4ggstr%C3%B6m" title="User:Mikael Häggström">Mikael Häggström</a>
2009-01-11
<ul><li>Nunn, A. J., and I. Gregg. 1989. New regression equations for predicting peak expiratory flow in adults. Br. Med. J. 298: 1068-1070 .</li></ul>
Adapted by Clement Clarke for use in EU scale - see <a rel="nofollow" class="external text" href="http://www.peakflow.com/top_nav/normal_values/index.html">Peakflow.com &gt; Predictive Normal Values (Nomogram, EU scale)</a>