TY  - GEN
AU  - Jekel James F., Katz David L.
TI  - Epidemiological biostatistics, and preventive medicine.
SN  - 9781416034964
U1  - 614.4 JEK 
CY  - Elsevier: 2007.
KW  - Epidemiology
N1  - Includes bibliographical references and index; NANYOMBI DEBORAH 17/OCT/2008
ER  -