title: Chronic total occlusions: a new frontier.
authors.affiliation: The Sanger Clinic, PA, USA.
authors.forename: Charles A
authors.initials: CA
authors.lastname: Simonton
mesh_terms: D015906:Angioplasty, Balloon, Coronary / Q000295:instrumentation / Q000379:methods*; D062906:Cardiac Catheters; D002908:Chronic Disease; D054059:Coronary Occlusion / Q000628:therapy*; D004867:Equipment Design; D006801:Humans; D016896:Treatment Outcome