Non-interventional study of the safety and effectiveness of fluticasone propionate/formoterol fumarate in real-world asthma management oleh Vibeke Backer, Adam Ellery, Sylvia Borzova, Stephen Lane, Magda Kleiberova, Peter Bengtsson, Tadeusz Tomala, Dominique Basset-Stheme, Carla Bennett, Dirk Lindner, Arthur Meiners, Tim Overend