TY  - RPRT
TI  - Explorers. Christopher Columbus and Leonardo da Vinci.
AU  - A J Donovan
PY  - 1993
DO  - 10.1001/archsurg.1993.01420190015002
UR  - https://pubmed.ncbi.nlm.nih.gov/8317953/
ID  - 8317953
ER  -