1. Department of Epidemiology and Biostatistics, University of California, San Francisco, California, USA.
2. Department of Obstetrics and Gynecology, University of California, Los Angeles, Los Angeles, California, USA.
3. University of California Fibroid Network, USA.
4. Department of Obstetrics and Gynecology, University of California, Irvine, Irvine, California, USA.
5. Department of Obstetrics and Gynecology, University of California, San Diego, San Diego, California, USA.
6. Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, California, USA.
7. Department of Obstetrics and Gynecology, University of California, Davis, Davis, California, USA.