title: Gross demonstration of the mammalian atrioventricular bundle by a periodic acid-Schiff procedure.
mesh_terms: D000818:Animals; D002415:Cats; D004285:Dogs; D006329:Heart Conduction System / Q000033:anatomy & histology*; D006801:Humans; D066298:In Vitro Techniques; D011817:Rabbits; D012756:Sheep; D013194:Staining and Labeling