Dietary factors and cancers of the renal pelvis and ureter.

Department of Behavioural and Community Health Sciences, Faculty of Heath Sciences, University of Sydney, Sydney, New South Wales, Australia; Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, Maryland; Cancer Center, MMC 806, University of Minnesota, Minneapolis, Minnesota; New Jersey Department of Health and Senior Services, Trenton, New Jersey; Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa; and International Epidemiology Institute, Rockville, Maryland