@conference{0354632a168f4f4c99c9d14711c12347,
title = "Tiotropium decreases the risk of exacerbations in patients with symptomatic asthma regardless of baseline characteristics",
author = "Kerstjens, \{Huib A M\} and Tashkin, \{Donald P\} and M Engel and Ronald Dahl and Pierluigi Paggiaro and E. Beck and Mark Vandewalker and W Seibold and Petra Moroni-Zentgraf and H. Schmidt and Piet Cornelissen and Bateman, \{Eric D\}",
note = "WCA Mexico City",
year = "2014",
month = mar,
language = "English",
}