TY  - BOOK
AU  - Kramer, Michael S.
TI  - Clinical Epidemiology and Biostatistics: A Primer for Clinical Investigators and Decision-Makers 
SN  - 3540188746
U1  - 614.4028 
PY  - 1988///
CY  - New York
PB  - Springer-Verlag
ER  -