As ranks of uninsured grow, charity care can be hard to come by at many hospitals ST. CLOUD, Minn. — Cori Roberts was living in a rented basement four years ago when she was diagnosed with early-stage cervical cancer. Recently divorced, the former stay-at-home mother had returned to work in her mid-40s, taking a human resources job that paid $41,000 a year. Then, despite having insurance, she was ...