Source: Laura E. Beane Freeman, Aaron Blair, Jay H. Lubin, Patricia A. Stewart, Richard B. Hayes, Robert N. Hoover, Michael Hauptmann, JNCI Journal of the National Cancer Institute, Vol. 101, No. 10, published online May 12, 2009
From the summary:
Results from an ongoing study of workers employed at plants that used or produced formaldehyde continue to show a possible link between formaldehyde exposure and death from cancers of the blood and lymphatic system, particularly myeloid leukemia. The report, by researchers at the National Cancer Institute (NCI), part of the National Institutes of Health, provides an additional 10 years of follow-up data to build on previous findings from this study. The report appeared online May 12, 2009, and in print May 20, 2009, in the Journal of the National Cancer Institute.
– Fact Sheet