Erratum to: A randomised dose-ranging study of tiotropium Respimat® in children with symptomatic asthma despite inhaled corticosteroids
© Vogelberg et al. 2015
Received: 12 October 2015
Accepted: 12 October 2015
Published: 20 October 2015
The original article was published in Respiratory Research 2015 16:20
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