TY  - BOOK
AU  - FLETCHER  R.H.,FLETCHER  S.W.  .
AU  - .
TI  - CLINICAL EPIDEMIOLOGY : THE ESSENTIALS / 
SN  - 07817757X
U1  - 614.4 
PY  - 2005///
CY  - NULL : 
PB  - B.I. PUB. , 
KW  - PREVENTIVE SOCIAL MEDICINE(EPIDEMIOLOGY)
N1  - PSM
ER  -