@misc{indiciae60941f719953,
  title = {Explorers. Christopher Columbus and Leonardo da Vinci.},
  author = {A J Donovan},
  year = {1993},
  doi = {10.1001/archsurg.1993.01420190015002},
  url = {https://pubmed.ncbi.nlm.nih.gov/8317953/},
  note = {Source identifier: 8317953}
}