This is less comforting than it sounds, because the usual method for doing a safety analysis is to include all the deaths that occurred in patients who were assigned to take a drug, not just those that are clearly linked to a treatment, in order to avoid missing anything.

FORBES: Pfizer's Key Drug Walks A Tightrope

After December 1994, it became necessary, for safety reasons, to find a remote method to continue with the study of glacier changes.

UNESCO: Dublin Core

However, on Monday it was revealed that a new report carried out on behalf of HSE by the Health and Safety Laboratory (HSL) - which carries out scientific research - that the method of testing carried out by Santia could "overestimate the levels of asbestos fibres as it does not distinguish between asbestos fibres and other fibres such as paper, clothing and skin cells".

BBC: Asbestos: More concerns over Cwmcarn High School future