Authors: G Höffken; J Lorenz; W Kern; T Welte; T Bauer; K Dalhoff; E Dietrich; S Ewig; P Gastmeier; B Grabein; E Halle; M Kolditz; R Marre; H Sitter Journal: Pneumologie Date: 2009-10-09
Authors: Jesús López-Alcalde; Ricardo Rodriguez-Barrientos; Jesús Redondo-Sánchez; Javier Muñoz-Gutiérrez; José María Molero García; Carmen Rodríguez-Fernández; Julio Heras-Mosteiro; Jaime Marin-Cañada; Jose Casanova-Colominas; Amaya Azcoaga-Lorenzo; Virginia Hernandez Santiago; Manuel Gómez-García Journal: Cochrane Database Syst Rev Date: 2018-09-06