@misc{indiciae4729edd53078,
  title = {Front-line epidemiology.},
  author = {G J Ebrahim},
  year = {1991},
  doi = {10.1093/tropej/37.4.146},
  url = {https://pubmed.ncbi.nlm.nih.gov/1960768/},
  note = {Source identifier: 1960768}
}