@misc{8340,
  author = {F. Nissen and D. Morales and H. Mullerova and L. Smeeth and I. Douglas and J. Quint},
  title = {Concomitant diagnosis of asthma and COPD: a quantitative study in UK primary care},
  year = {2018},
  journal = {Br J Gen Pract},
  volume = {68},
  number = {676},
  pages = {e775-e782},
  issn = {0960-1643},
  doi = {10.3399/bjgp18X699389},
}