An Efficacy and Safety Evaluation of Tiotropium add-on Therapy in Patients With Severe Persistent Asthma

Boehringer Ingelheim Investigational Site, Aalborg

Boehringer Ingelheim Investigational Site, Aarhus C

Boehringer Ingelheim Investigational Site, Hvidovre

Boehringer Ingelheim Investigational Site, K?benhavn NV

Boehringer Ingelheim Investigational Site, Odense C

Boehringer Ingelheim Investigational Site, Gelnhausen

Boehringer Ingelheim Investigational Site, Gro?hansdorf

Boehringer Ingelheim Investigational Site, Rudersdorf

Boehringer Ingelheim Investigational Site, Wiesbaden

Boehringer Ingelheim Investigational Site, Wiesloch

lokatie Langendijk, Breda

Polikliniek longziekten, Eindhoven

Polikliniek longziekten, Groningen

Polikliniek Longziekten, Heerlen

Polikliniek longziekten, Hengelo

lokatie het Spittaal, Zutphen