title: THE EXTENT OF CARDIAC MUSCLE IN THE GREAT VEINS OF THE DOG.
mesh_terms: D001401:Azygos Vein; D004285:Dogs; D006654:Histology, Comparative; D009206:Myocardium; D011667:Pulmonary Veins; D012106:Research; D014682:Vena Cava, Inferior; D014683:Vena Cava, Superior; D014684:Venae Cavae
keywords: AZYGOS VEIN; DOGS; EXPERIMENTAL LAB STUDY; HISTOLOGY, COMPARATIVE; MYOCARDIUM; PULMONARY VEINS; VENA CAVA, INFERIOR; VENA CAVA, SUPERIOR