@misc{miscf83bb933,
title   = {Unsuspected mild emphysema in nonsmoking patients with chronic asthma with persistent airway obstruction [Carta]},
author = {Gelb, Arthur F. and Yamamoto, Alfred and Mauad, Thais and Kollin, Jozef and Schein, Mark J. and Nadel, Jay A.},
year = {2014},
doi = {10.1016/j.jaci.2013.09.045},
journal   = {Journal of Allergy and Clinical Immunology}
}