PT - JOURNAL ARTICLE ED - , AID - 10.1158/1055-9965.EPI-15-8-COR1 DP - 2006 Aug 01 TA - Cancer Epidemiology Biomarkers & Prevention PG - 1568--1568 VI - 15 IP - 8 4099 - http://cebp.aacrjournals.org/content/15/8/1568.1.short 4100 - http://cebp.aacrjournals.org/content/15/8/1568.1.full SO - Cancer Epidemiol Biomarkers Prev2006 Aug 01; 15