1. Division of Epidemiology, Department of Medicine; Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 2525 West End Avenue, 8th Floor; Nashville TN
2. Department of Epidemiology; Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine; Shanghai China
3. Division of Epidemiology and Genetics; National Cancer Institute; Bethesda MD
4. Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; Shanghai China