Before revision: Macrobius, in Saturnalia VII, 13 (a notably fictional work) refers to the connection between the ring finger and the heart, but implies in the one phrase a nerve rather than a vein, and in another implies more of a magical than physical significance to the choice of finger.
After revision: Macrobius, in Saturnalia VII, 13 refers to the connection between the ring finger and the heart, but implies in the one phrase a nerve rather than a vein, and in another implies more of a magical than physical significance to the choice of finger.