Midwestern PTCA utilization rates are highest.
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Department of Medicine, University of Kansas School of Medicine-Wichita 67214.
D015906:Angioplasty, Balloon, Coronary / Q000706:statistics & numerical data* / Q000639:trends; D003327:Coronary Disease / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015146:Midwestern United States; D010818:Practice Patterns, Physicians'