The new European research platform permits the most comprehensive assessment of tree species diversity effects on forest ecosystem functioning to date since it offers a common set of research plots to groups of researchers from very different disciplines and uses the same methodological approach in contrasting forest types along an extensive environmental gradient.
They are based on smaller numbers (total of only 70 patients), and have the same methodological flaws [ 5, 10, 12, 13].
However, the evidence is limited and shares the same methodological drawbacks as trials on LPDs: compliance is crucial in the long term and it is difficult to achieve if the diet is too rigid.
Nevertheless, previous studies that utilized the PEDS data base and faced the same methodological issue, consistently replicated established epidemiological associations for a variety of cancer sites, including ovary [ 34, 35], colon [ 36], breast [ 37], prostate [ 38], and lung [ 39].
Proceeding to space time clustering, and taking the same methodological approach while also allowing temporal-only clusters across the whole area, the most likely cluster emerged as the period 2004 2007 over the whole area, with a relative risk of 1.33 (p = 0.007).
However, several positive reports (and strata) were from the same origin [ 35- 43] and thus had the same methodological problems.
The surveys were conducted as face-to-face interviews in 2000 and 2003 on the same methodological basis [ 19].
Therefore, parallel analysis of CTCs and DTCs with the same methodological principle should be encouraged in future trials.
The indoor exposure model was nested into the fate, exposure, and effects model USEtox (21), in order to quantify indoor and outdoor exposure on the same methodological basis.
