1. Division of Renal-Electrolyte; Department of Medicine; University of Pittsburgh School of Medicine; Pittsburgh USA
2. Center for Health Equity Research and Promotion; VA Pittsburgh Healthcare System; Pittsburgh USA
3. Department of Biostatistics; Graduate School of Public Health; University of Pittsburgh; Pittsburgh USA
4. Department of Population Health; New York University School of Medicine; New York New York USA
5. Division of General Internal Medicine; University of Pittsburgh School of Medicine; Pittsburgh USA
6. Renal Section; Medicine Service Line; VA Pittsburgh Healthcare System; Pittsburgh USA
7. Division of Palliative Care; University of Pittsburgh School of Medicine; Pittsburgh USA