@misc{indiciaeda4c0b00bcbb,
  title = {[Effect of influenza vaccination on the decrease of morbidity associated with work inability at the Povázské Strojírny in Povázská Bystrica].},
  author = {J Bullová},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4730925/},
  note = {Source identifier: 4730925}
}