Rebbeck Timothy R, Sankar Pamela
Department of Biostatistics and Epidemiology, University of Pennsylvania School of Medicine, 904 Blockley Hall, 423 Guardian Drive, Philadelphia, PA 19104-6021, USA.
Cancer Epidemiol Biomarkers Prev. 2005 Nov;14(11 Pt 1):2467-71. doi: 10.1158/1055-9965.EPI-05-0649.