@misc{indiciae803118acb26e,
  title = {The African challenge.},
  author = {Joy E Lawn and Stephen D Lawn},
  year = {2002},
  doi = {10.1016/s0140-6736(02)08455-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/11988286/},
  note = {Source identifier: 11988286}
}