Trans fats became popular in the late 1960's, after saturated fats, found in animal fats and tropical oils, were conclusively linked to an increased risk of heart disease.
Lori Schwacke, the lead scientist for the health assessment, said the findings were preliminary and could not be conclusively linked to the oil spill at this point.
Dr. Cors said none of the deaths could be conclusively linked to the presence of unusually high or low levels of drugs or natural hormones that were found in six patients, four of whom died.
The authorities would not say whether the recent arrest led them to suspect that Mr. Ridgway, if he is indeed the Green River killer, was planning a new round of murder -- no slayings have been conclusively linked to the case since 1984.
While the accounts cannot be conclusively linked to Communist party authorities, the sheer scope of the initiative suggests state backing, said Free Tibet's press and media manager Alistair Currie.
Wil Roebroeks, an archaeologist at Leiden University in the Netherlands, cautioned that the study relied to a large degree on testing of stone tools, rather than bones, and these had not been conclusively linked to particular species, or hominins.
The use of asbestos, a heat-resistant mineral put in insulation, roofing tiles and brakes, has fallen drastically since the early 1970's, when it was conclusively linked to lung and other cancers.
The incidence of observed lesions and gill pathologies could not be conclusively linked to increased mortality rates observed in the exposed populations.
This is why we ought to de-link the identities of users from the submitted ratings such that individual users and their ratings cannot be conclusively linked to each other.
