TY  - BOOK
AU  - Nelson, Kenrad E..
TI  - Infectious Disease Epidemiology Theory and Practice / 
U1  - 614.4 
PY  - 2001///
CY  - Maryland : 
PB  - An Aspen Publication , 
KW  - Community Medicine
KW  - Epidemiology
KW  - Medical Science
ER  -