tobacco leads to cancer and The Many Dangers of Tobacco

It annexed East Jerusalem and the Golan Heights, in moves not recognised internationally

A thunderclap headache can be a warning sign of a life-threatening condition such as severely high blood pressure, bleeding in the brain, a breach in one of the arteries in the neck and viral or bacterial meningitis

I was staring at the photo with something like

Techniques exist for estimating the magnitude and direction of potential biases introduced by a differentially misclassified confounder, based on sensitivity and specificity estimates from an internal validation sub-study or a range of plausible values derived from an external validation study such as this (see e.g