Fu, Chen-ChungChen-ChungFu2009-02-122018-07-132009-02-122018-07-131994http://ntur.lib.ntu.edu.tw//handle/246246/128405en-USA Comparison of the Utilization of Insurance Programs and Medical Cost in Patients with Different Insruance Coverages at Group Practice Center- Before and After the New Billing System Was Put Into Effect