TY  - BOOK
AU  - Elwood, J. Mark
TI  - Critical appraisal of epidemiological studies and clinical trials
SN  - 0192627449
PY  - 1998///
CY  - Oxford
PB  - Oxford Univ Press
KW  - EPIDEMIOLOGY
KW  - CLINICAL TRIALS
KW  - Research
KW  - CRITICAL APPRAISAL
N1  - Held at: AS; CY; CN; MS; CR; KMSHA
ER  -