TY  - BOOK
AU  - Schlesselman,James J  .
AU  - Stolley,Paul D  .
TI  - Case-control studies: design, conduct, analysis / 
U1  - 614.40723 
PY  - 1982///
CY  - New York : 
PB  - Oxford University Press , 
KW  - Epidemiology
KW  - Experimental design
KW  - Statistical methods
ER  -