Roentgenologic studies of the sphincter mechanism of the caval and pulmonary veins.
D000792:Angiography; D009369:Neoplasms; D009374:Neoplasms, Experimental; D011667:Pulmonary Veins / Q000502:physiology*; D012143:Respiratory Physiological Phenomena; D014680:Veins; D014684:Venae Cavae / Q000502:physiology*
ANGIOGRAPHY; NEOPLASMS/experimental; VEINS, PULMONARY/physiology; VENAE CAVAE/physiology