TY  - BOOK
AU  - Macmahan, Brian
AU  - Pugh, Thomas F.
TI  - Epidomiology: priniciples and methods
SN  - 0-316-54259-8
U1  - 616 
PY  - 1970///
CY  - Boston
PB  - Little Brown and Company
KW  - Diseases
KW  - Pathology -- Internal medicine
N1  - 339/019/1.9.80; diseases, pathology, internal medicine
ER  -