TY  - BOOK
AU  - Tiwari,Poornima
AU  - Tiwari,Shashank
TI  - Epidemiology made easy
SN  - 8184486391
U1  - 614.4 
PY  - 2009///
CY  - New Delhi
PB  - Jaypee Brothers Medical Pub.
KW  - Epidemiología
ER  -