Template:Ref-Johnston1915
From Embryology
Johnston TB. A rare vascular anomaly-opening of the upper left pulmonary vein into a persistent left superior vena cava. (1915) J Anat. Physiol. 49(2):182-186.
Johnston TB. A rare vascular anomaly-opening of the upper left pulmonary vein into a persistent left superior vena cava. (1915) J Anat. Physiol. 49(2):182-186.