Enhanced oxidative stress in smoking and ex-smoking severe asthma in the U-BIOPRED cohort. oleh Rosalia Emma, Aruna T Bansal, Johan Kolmert, Craig E Wheelock, Swen-Erik Dahlen, Matthew J Loza, Bertrand De Meulder, Diane Lefaudeux, Charles Auffray, Barbro Dahlen, Per S Bakke, Pascal Chanez, Stephen J Fowler, Ildiko Horvath, Paolo Montuschi, Norbert Krug, Marek Sanak, Thomas Sandstrom, Dominick E Shaw, Louise J Fleming, Ratko Djukanovic, Peter H Howarth, Florian Singer, Ana R Sousa, Peter J Sterk, Julie Corfield, Ioannis Pandis, Kian F Chung, Ian M Adcock, René Lutter, Lorena Fabbella, Massimo Caruso, U-BIOPRED Study Group