Docs help rein in pacemaker prices.
D003363:Cost Control; D003625:Data Collection; D017754:Group Purchasing; D019983:Guideline Adherence; D005102:Health Expenditures / Q000639:trends; D010138:Pacemaker, Artificial / Q000145:classification / Q000191:economics*; D010820:Physicians; D014481:United States