Aylin Altan Riedel holds a Ph.D. in Health Services Research from the University of Minnesota (2000). At the time of publication she was a researcher in the Health Research Center at the Park Nicollet Institute. She is currently a senior research analyst at Ingenix Pharmaceutical Services. Her research interests focus on health outcomes for individuals with chronic illness, with special focus on how the organization of care delivery, self-management strategies and socioeconomic factors interact to affect outcomes for these patients.