@misc{indiciaec69c27fdd704,
  title = {Pneumococcal vaccine campaign based in general practice.},
  author = {P McDonald and E H Friedman and A Banks and R Anderson and V Carman},
  year = {1997},
  doi = {10.1136/bmj.314.7087.1094},
  url = {https://pubmed.ncbi.nlm.nih.gov/9133894/},
  note = {Source identifier: 9133894}
}