1. Division of Epidemiology, Department of Medicine Vanderbilt University Medical Center and Vanderbilt‐Ingram Cancer Center Nashville Tennessee USA
2. Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine Shanghai China
3. Tennessee Department of Health Nashville Tennessee USA
4. Department of Pathology University of Utah School of Medicine Salt Lake City Utah USA
5. ARUP Institute for Clinical and Experimental Pathology Salt Lake City Utah USA
6. Division of Cancer Epidemiology and Genetics Occupational and Environmental Epidemiology Branch, National Cancer Institute Bethesda Maryland USA
7. Department of Biostatistics Vanderbilt University Medical Center Nashville Tennessee USA