1. Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
2. Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
3. Department of Urology, Helen Diller Family Comprehensive Cancer Center, San Francisco, California
4. Department of Epidemiology & Biostatistics, University of California, San Francisco, San Francisco