@misc{8273,
  author = {J. Amegadzie and O. Badejo and J. Gamble and M. Wright and J. Farrell and B. Jackson and K. Sultana and M. Hashmi and Z. Gao},
  title = {Validated methods to identify patients with asthma-COPD overlap in healthcare databases: a systematic review protocol},
  year = {2019},
  journal = {BMJ Open},
  volume = {9},
  number = {3},
  pages = {e024306},
  issn = {2044-6055},
  doi = {10.1136/bmjopen-2018-024306},
}