| Karen Hacker | Dr. Hacker is with the Allegheny County Health Department and with the Graduate School of Public Health, University of Pittsburgh, Pittsburgh (e-mail: ). Dr. Penfold is with the Department of Health Services Research, Group Health Research Institute, Seattle. Dr Arsenault is with the Institute for Community Health, and Harvard Medical School, Harvard Medical School, and with Harvard Pilgrim Healthcare Institute, Johns Hopkins Bloomberg School of Public Health |
| Robert B Penfold | Dr. Hacker is with the Allegheny County Health Department and with the Graduate School of Public Health, University of Pittsburgh, Pittsburgh (e-mail: ). Dr. Penfold is with the Department of Health Services Research, Group Health Research Institute, Seattle. Dr Arsenault is with the Institute for Community Health, and Harvard Medical School, Harvard Medical School, and with Harvard Pilgrim Healthcare Institute, Johns Hopkins Bloomberg School of Public Health |