TY  - RPRT
TI  - Interpreting observational studies -- look before you leap.
AU  - Anthony A Bavry
AU  - Deepak L Bhatt
PY  - 2006
DO  - 10.1016/j.jclinepi.2005.12.015
UR  - https://pubmed.ncbi.nlm.nih.gov/16828666/
ID  - 16828666
ER  -