1. Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA
2. Permanente Dental Associates, Portland, OR, USA
3. University of Southern California Suzanne Dworak–Peck School of Social Work, Los Angeles, CA, USA
4. I-Lead Institute–Research to End Healthcare Disparities Corp, Santa Monica, CA, USA
5. University of Pittsburgh, Pitt Dental Medicine, Pittsburgh, PA, USA