[Observations on the sinoatrial node of Ovis aries, Capra hircus, Bos taurus and Equus caballus].
D000715:Anatomy; D000818:Animals; D002404:Catheterization; D002417:Cattle; D006041:Goats; D006329:Heart Conduction System; D006736:Horses; D012756:Sheep; D034561:Sheep, Domestic; D012849:Sinoatrial Node
ANATOMY; CATHETERIZATION; GOATS; HEART CONDUCTION SYSTEM; HORSES; SHEEP