1. Department of Obstetrics and Gynecology, University of Michigan Medical School, Ann Arbor, Michigan, USA
2. Center for Bioethics & Social Sciences in Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
3. Department of Otolaryngology - Head and Neck Surgery, University of Michigan Medical School, Ann Arbor, Michigan, USA
4. Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan, USA