@misc{indiciae820f9a2c185d,
  title = {IgG subclass specific antibody response in recurrent bronchitis.},
  author = {F de Baets and R Pauwels and I Schramme and J Leroy},
  year = {1991},
  doi = {10.1136/adc.66.12.1378},
  url = {https://pubmed.ncbi.nlm.nih.gov/1776880/},
  note = {Source identifier: 1776880}
}