Caring for high-need patients. - Hempel, Susanne; Bolshakova, Maria; Hochman, Michael; Jimenez, Elvira; Thompson, Gina; Motala, Aneesa; Ganz, David A.; Gabrielian, Sonya; Edwards, Samuel; Zenner, James; Dennis, Ben; Chang, Evelyn (BMC Health Services Research, 2023)