1. Department of Epidemiology and Biostatistics; University of California San Francisco; San Francisco CA
2. Department of Laboratory Medicine and Genetics; Samsung Medical Center, Sungkyunkwan University School of Medicine; Seoul Korea
3. Department of Epidemiology and Public Health; Yale University; New Haven CT
4. College of Public Health and Human Sciences; Oregon State University; Corvallis OR
5. Division of Epidemiology; School of Public Health, University of California Berkeley; Berkeley CA
6. Cancer Center Institute, University of California San Francisco; San Francisco CA
7. Department of Neurological Surgery; University of California San Francisco; San Francisco CA