@misc{9311,
  author = {H. Mullerova and C. Lu and H. Li and M. Tabberer},
  title = {Prevalence and burden of breathlessness in patients with chronic obstructive pulmonary disease managed in primary care},
  year = {2014},
  journal = {PLoS One},
  volume = {9},
  number = {1},
  pages = {e85540},
  issn = {1932-6203},
  doi = {10.1371/journal.pone.0085540},
}