Interviews and queries of administrative databases will provide evaluative data at baseline and at 12-, 24-, and 32-month follow-up intervals. The primary outcome variables are the participants' physical health and mental health (SF-36 Summary Scales) and health services utilization. Secondary outcome variables include: the quality of care; unpaid caregivers' burden; self-rated health; patient satisfaction; and primary care physicians' satisfaction. Intention-to-treat analyses will have 85% power (range of 70-97%) to detect clinically meaningful differences between the two groups.