@misc{9241,
  author = {Y. Punekar and A. Shukla and H. Mullerova},
  title = {COPD management costs according to the frequency of COPD exacerbations in UK primary care},
  year = {2014},
  journal = {Int J Chron Obstruct Pulmon Dis},
  volume = {9},
  pages = {65-73},
  issn = {1176-9106},
  doi = {10.2147/copd.s54417},
}