authors Noël, Polly Hitchcock Williams, John W Unützer, Jürgen Worchel, Jason Lee, Shuko Cornell, John Katon, Wayne Harpole, Linda H Hunkeler, Enid
has subject area Aged Chronic Disease Comorbidity Cross-Sectional Studies Depression Female Health Status Humans Male Middle Aged Primary Health Care Quality of Life Severity of Illness Index Socioeconomic Factors Surveys and Questionnaires