title: Venous valves: unseen obstructions to coronary access.
authors.affiliation: Surgery, University of Minnesota, B172 Mayo, MMC 107, 420 Delaware Street SE, Minneapolis, MN 55455, USA.
authors.forename: Sara E
authors.initials: SE
authors.lastname: Anderson
authors.forename: Alexander J
authors.initials: AJ
authors.lastname: Hill
authors.forename: Paul A
authors.initials: PA
authors.lastname: Iaizzo
mesh_terms: D000328:Adult; D000792:Angiography; D002309:Cardiology / Q000379:methods*; D002405:Catheterization, Central Venous; D003326:Coronary Circulation; D005471:Fluoroscopy / Q000379:methods; D006339:Heart Rate; D016027:Heart Transplantation; D006351:Heart Valves / Q000033:anatomy & histology / Q000473:pathology*; D006801:Humans; D014057:Tomography, X-Ray Computed; D014680:Veins / Q000033:anatomy & histology / Q000473:pathology*; D014741:Video Recording