TY  - BOOK
AU  - Baxby,Derrick
TI  - Jenner's smallpox vaccine : the riddle of vaccinia virus and its origin
SN  - 0435540572
AV  - MED QR189.5.S6 B38 
PY  - 1981///
CY  - London 
PB  - Heinemann Educational Books
KW  - Smallpox vaccine
KW  - Physicians
N1  - Includes index
ER  -