One of the researchers involved was Dr Hugh Dunstan.
Chlorinated hydrocarbons are a set of molecules designed originally for use as pesticides.
They include things such as DDT, and other compounds include lindane and hexachlorobenzene, as a few examples. And they have been used very successfully to control insect pests. And we compared these with a healthy group of people. And what we found is that our levels that we measured in healthy people were pretty consistent with those levels reported from the United States at about four to five parts per billion in the blood. And the levels in the chronic fatigue patients for DDT or DDE were about ten to eleven parts per billion.