Kutcher MA, Klein LW, Ou FS, Wharton TP, Dehmer GJ, Singh M, Anderson HV, Rumsfeld JS, Weintraub WS, Shaw RE, Sacrinty MT, Woodward A, Peterson ED, Brindis RG. Percutaneous coronary interventions in facilities without cardiac surgery on site: a report from the National Cardiovascular Data Registry (NCDR). J Am Coll Cardiol. 2009 Jun 30; 54(1):16-24.