Respiratory Research Group and Department of Physiology and Biophysics, University of Calgary, Calgary, Alberta, Canada
Correspondence to David Proud, PhD, Department of Physiology and Biophysics, HSC 1627, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta T2N 4N1, Canada Tel: +1 403 210 3816; fax: +1 403 270 0692; e-mail: [email protected]