This doesn't prove cause and effect, Giovannucci admits.

FORBES: D Is for Debate

Findings like these don't prove cause and effect.

FORBES: Our Germs, Ourselves

Well, no we can't say there's cause and effect here.

BBC: Red meat: What is a 13% increase in the risk of death?

People are quite stupendously lazy if they can't see a direct cause-effect and I think that quite a few of the apathetic - "what difference will my vote make" - bunch would be more likely to exercise their franchise if they didn't have to exercise their legs.

BBC: Matthew Parris

Aren't economists always concerned, in one way or another, with cause and effect?

BBC: The Nobel prize, and the ONS