TY  - BOOK
AU  - Checkoway, Harvey
AU  - Crawford-Brown, Douglas J
AU  - Pearce, Neil
TI  - Research methods in occupational epidemiology
SN  - 9780195052244
SN  - 89003255
U1  - 616.9803072 CHE 
PY  - 1989///
CY  - Oxford
PB  - Oxford University Press
KW  - Epidemiologic Methods
KW  - Occupational Diseases - epidemiology
N1  - Includes bibliographical references and index
ER  -