Maintenance: On Thursday, June 28 2018, 18:00-18:15, maintenance work on the ZORA servers is scheduled. ZORA will not be available during this period. Thank you for your patience.
Russi, E W; Karrer, W; Brutsche, M; Eich, C; Fitting, J W; Frey, M; Geiser, T; Kuhn, M; Nicod, L; Quadri, F; Rochat, T; Steurer-Stey, C; Stolz, D (2013). Diagnosis and management of chronic obstructive pulmonary disease: the swiss guidelines. Official guidelines of the Swiss Respiratory Society. Respiration, 85(2):160-174.