title: This commentary is based on the recently published article: Tantisira KG, Systrom DM, Ginns LC. An elevated breathing reserve index at the lactate threshold is a predictor of mortality in patients with cystic fibrosis awaiting lung transplantation. Am J Respir Crit Care Med 2002;165;1629-1633.
authors.affiliation: College of Medicine, University of California at Irvine, Irvine, California, USA. dcooper@uci.edu
authors.forename: Dan Michael
authors.initials: DM
authors.lastname: Cooper