<affiliation wicri:level="2"><nlm:affiliation>Elena O. Siegel, PhD, RN, is Assistant Professor, Robert Wood Johnson Foundation Nurse Faculty Scholar, 2007-2009 JAHF/Atlantic Philanthropies Claire M. Fagin Fellow, Betty Irene Moore School of Nursing at UC Davis, Sacramento, California. E-mail: elena.siegel@ucdmc.ucdavis.edu. Michael C. Leo, PhD, is Biostatistics Investigator, Kaiser Permanente Center for Health Research, Portland, Oregon. E-mail: Michael.C.Leo@kpchr.org. Heather M. Young, PhD, RN, FAAN, is AssociateViceChancellor for Nursing,UCDavis, Dean and Professor, Betty IreneMoore School of Nursing at UC Davis, Sacramento, California. E-mail: heather.young@ucdmc.ucdavis.edu. Nicholas G. Castle, MHA, PhD, is Professor, Department of Health Policy and Management, University of Pittsburgh, Pennsylvania. E-mail: CastleN@Pitt.edu.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Pennsylvanie</region>
</placeName>
<wicri:cityArea>Elena O. Siegel, PhD, RN, is Assistant Professor, Robert Wood Johnson Foundation Nurse Faculty Scholar, 2007-2009 JAHF/Atlantic Philanthropies Claire M. Fagin Fellow, Betty Irene Moore School of Nursing at UC Davis, Sacramento, California. E-mail: elena.siegel@ucdmc.ucdavis.edu. Michael C. Leo, PhD, is Biostatistics Investigator, Kaiser Permanente Center for Health Research, Portland, Oregon. E-mail: Michael.C.Leo@kpchr.org. Heather M. Young, PhD, RN, FAAN, is AssociateViceChancellor for Nursing,UCDavis, Dean and Professor, Betty IreneMoore School of Nursing at UC Davis, Sacramento, California. E-mail: heather.young@ucdmc.ucdavis.edu. Nicholas G. Castle, MHA, PhD, is Professor, Department of Health Policy and Management, University of Pittsburgh</wicri:cityArea>
</affiliation>