@misc{indiciae707f2f29174a,
  title = {Asthma as a risk factor for COPD in a longitudinal study.},
  author = {Graciela E Silva and Duane L Sherrill and Stefano Guerra and Robert A Barbee},
  year = {2004},
  doi = {10.1378/chest.126.1.59},
  url = {https://pubmed.ncbi.nlm.nih.gov/15249443/},
  note = {Source identifier: 15249443}
}