@misc{indiciae191c0bbf6895,
  title = {Challenges in epidemiologic allergy research.},
  author = {G Pershagen},
  year = {1997},
  doi = {10.1111/j.1398-9995.1997.tb00174.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/9404554/},
  note = {Source identifier: 9404554}
}