TY  - GEN
AU  - Freeman,J
AU  - Goldmann,D A
AU  - McGowan,J E
TI  - Methodologic issues in hospital epidemiology. IV. Risk ratios, confounding, effect modification, and the analysis of multiple variables
SN  - 0162-0886
PY  - 1989///0202
KW  - Analysis of Variance
KW  - Cross Infection
KW  - epidemiology
KW  - Epidemiologic Methods
KW  - Humans
KW  - Risk
N1  - Publication Type: Journal Article; Review
UR  - https://doi.org/10.1093/clinids/10.6.1118
ER  -