@misc{indiciae1270693de256,
  title = {[Immunoglobulin level in bronchial secretion].},
  author = {J Del Rey Calero and L C Malo González and F J Zerolo Valderrama and F J López Fernández and J García Herruzo},
  year = {1976},
  url = {https://pubmed.ncbi.nlm.nih.gov/968131/},
  note = {Source identifier: 968131}
}