TY  - RPRT
TI  - Observational versus randomised trial evidence.
AU  - Kay-Tee Khaw
AU  - Nick Day
AU  - Sheila Bingham
AU  - Nick Wareham
DO  - 10.1016/s0140-6736(04)16924-9
UR  - https://pubmed.ncbi.nlm.nih.gov/15337392/
ID  - 15337392
ER  -