Basal cell epithelioma in smallpox vaccination scar-fifty years later.
D000368:Aged; D002280:Basal Cell Carcinoma; D002921:Cicatrix; D006801:Humans; D008297:Male; D012878:Skin Neoplasms; D012900:Smallpox Vaccine; D014611:Vaccination
D012900:Smallpox Vaccine