1. Department of Health Promotion and Policy, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA, USA
2. Department of Urology, Beaumont Hospital, Royal Oak, MI, USA
3. Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
4. Michigan Institute for Clinical and Health Research, University of Michigan, Ann Arbor, MI, USA
5. Department of Anesthesiology, University of Michigan, Ann Arbor, MI, USA
6. VA Center for Clinical Management Research (CCMR), VA Ann Arbor Healthcare System, Ann Arbor, MI, USA
7. Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA