@article{Szefler2020, author = "Stanley J. Szefler and Stanley Goldstein and Christian Vogelberg and George W. Bensch and John Given and Branko Jugovic and Michael Engel and Petra M. Moroni-Zentgraf and Ralf Sigmund and Eckard H. Hamelmann", title = "{Forced Expiratory Flow (FEF25–75%) as a Clinical Endpoint in Children and Adolescents with Symptomatic Asthma Receiving Tiotropium: A Post Hoc Analysis}", year = "2020", month = "5", url = "https://adisjournals.figshare.com/articles/figure/Forced_Expiratory_Flow_FEF25_75_as_a_Clinical_Endpoint_in_Children_and_Adolescents_with_Symptomatic_Asthma_Receiving_Tiotropium_A_Post_Hoc_Analysis/12162027", doi = "10.6084/m9.figshare.12162027.v1" }