The digitization of health-care records has long been heralded as the cure for familiar headaches that afflict patients and their families. No more hassles in getting medical records from your elderly father's hospital stay transferred to the nursing home where he'll recuperate. No more waiting to find out the result of that Pap smear; just go online and avoid playing phone tag with your doctor's office. But a new study in the journal Health Affairs found that some of the digital health capabilities that consumers are most likely to notice or find useful are among the biggest digital challenges for hospitals.