Authors: Nausherwan K Burki; Raj Kumar Mani; Felix J F Herth; Werner Schmidt; Helmut Teschler; Frank Bonin; Heinrich Becker; Winfried J Randerath; Sven Stieglitz; Lars Hagmeyer; Christina Priegnitz; Michael Pfeifer; Stefan H Blaas; Christian Putensen; Nils Theuerkauf; Michael Quintel; Onnen Moerer Journal: Chest Date: 2013-03 Impact factor: 9.410