Spanish royal philanthropic expedition and smallpox vaccination.
Christenson
Bernard
B
D005260:Female; D049671:History, 18th Century; D049672:History, 19th Century; D006801:Humans; D011647:Puerto Rico; D012899:Smallpox / Q000517:prevention & control*; D012900:Smallpox Vaccine / Q000008:administration & dosage* / Q000266:history*; D013030:Spain; D014611:Vaccination / Q000266:history*
D012900:Smallpox Vaccine