Health Insurers Deny 850 Million Claims a Year. The Few Who Appeal Often Win.
Health insurers process more than five billion payment claims annually, federal figures show. About 850 million are denied, ...
Medscape16 小时
Rivaroxaban for Stroke Prevention in Atrial Fibrillation
1 Division of Cardiology, Hamilton General Hospital, McMaster University ... common cardiac arrhythmia and predisposes patients to stroke and systemic embolism. Vitamin K antagonists have been ...