TY  - GEN
AU  - Ren,Tao
AU  - Zhan,Si-ting
AU  - Shen,Xia
AU  - Meng,Fan-ya
AU  - Hu,Yong-hua
AU  - Li,Li-ming
TI  - [Bias and confounding in the epidemiologic studies]
SN  - 0254-6450
PY  - 2005///1025
KW  - Bias
KW  - Confounding Factors, Epidemiologic
KW  - Epidemiologic Methods
KW  - Humans
N1  - Publication Type: Journal Article
ER  -