[How to establish the relationship between an occupational exposure and the occurrence of a disease?]

The establishment of causal relationship between a previous exposure and a disease is based on medical and scientific data. In France, three procedures operate for the recognition and the compensation of the diseases related to occupational exposure, to asbestos and to nuclear weapons tests. A suspicion of link is enough for the victim to initiate proceedings. The physician of each patient had to identify the exposure that could further the occurrence of their disease, to advise and to make the social allocations easier, and to certify the disease but not the link or exposure.