00419nas a2200181 4500000000100000008004100001260001300042653001100055653001200066653001300078653002100091653001300112100001800125245006700143300000700210490000600217022001400223 1973 d c1973 Jan10aHumans10aleprosy10aSmallpox10aSmallpox Vaccine10aVaccinia1 aMackereth M B00aPrecipitation of reactions in lepromatous leprosy by vaccinia. a450 v3 a0049-4755