The British Medical Association (BMA) has admitted that its claim that smoking in cars generates 23 times more toxins than you would find in a smoky bar is wrong, reports The Telegraph.

After having announced the release of a briefing paper on 16 November, the BMA on 18 November changed one of the major figures that support the paper's finding of "compelling scientific evidence supporting a ban on smoking in motor vehicles".
The new version reads: "This [exposure to very high levels of second-hand smoke] is because the restrictive internal environment in motor vehicles could expose drivers and passengers to toxins up to 11 times greater than in a smoky bar." 
The change in wording from the original press release, which stated a figure of 23 times higher toxins, was caused by "an error that was found in the briefing paper shortly after publication", said BMA.
The BMA briefing paper received wide media coverage, including a report by BBC News. (pi)