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. 2013 Nov 30;25(1):59–72. doi: 10.1007/s10552-013-0308-8

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© The Author(s) 2013

Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.

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Fig. 3 — Relative risk of all cancer and leukemia-related death in the seven cantons with oil exploration and production activity (shown in red; “Y” = yes, oil-producing) and thirteen cantons with little or no oil exploration and production activity (shown in blue; “N” = no, not oil-producing) in northern Amazon provinces in Ecuador, 1990–2010. The size of each red circle is proportional to the cumulative volume of oil produced as of 1990. AML = acute myeloid leukemia; ANLL = acute non-lymphocytic leukemia; leukemia, 0–14 = leukemia in children aged 0–14 years. (Color figure online)