- Dr F Kamangar, Division of Cancer Epidemiology and Genetics, NCI, 6120 Executive Blvd., Rm 3034, Rockville, MD 20852, USA; ; or Dr Y-L Qiao, Department of Cancer Epidemiology, Cancer Institute, CAMS, P.O. Box 2258, Beijing 100021, P.R. China;
- Revised December 9, 2008
- Accepted December 16, 2008
- First published January 9, 2009.
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