- Correspondence to Polly A Newcomb, Head and Full Member, Cancer Prevention Program, Public Health Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, M4-B402 Seattle, WA 98109, USA;
- Cornelia Ulrich, Director, National Center for Tumor Diseases (NCT), Division of Preventive Oncology, German Cancer Research Center, Im Neuenheimer Feld 460, 69120 Heidelberg, Germany;
- Revised September 22, 2010
- Accepted September 23, 2010
- First published November 4, 2010.
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