Caduceus eloquence). The caduceus is often incorrectly used as a symbol of healthcare organizations and medical practice, particularly in North America, due to confusion with the traditional medical symbol, the Rod of Asclepius, which has only one snake and is never depicted with wings. It is thought that this symbol's long lasting association with the medical profession stems from early use of twigs to draw out long bodied inter muscular parasitic worms by wrapping them slowly around the twig so as not to break them or allow them to escape back into the body, a successful treatment still in use today,
Saint George and the Dragon century show military saints on horseback confronting serpents with one, two or three heads. One of the earliest examples is from the chruch known as Mavrucan 3 (), generally dated to the 10th century, which portrays two "sacred riders" confronting two serpents twined around a tree, in a striking parallel to the Dioskuroi stela, except that the riders are now attacking the snake in the "tree of life" instead of a boar. In this example, at least, there appear to be two snakes with separate heads, but other examples of 10th-century Cappadocia show polycephalous snakes. A poorly preserved wall-painting at