Background. The etiology of vitamin B12 deficiency is diverse and includes lack of intrinsic factor (IF), altered pH in the small intestine, and lack of absorption of B12 complexes in the terminal ileum. Vitamin B12 deficiency from any cause, as well as folic acid deficiency, can result in megaloblastic anemia.he etiology of vitamin B12 deficiency is diverse and includes lack of intrinsic factor (IF), altered pH in the small intestine, and lack of absorption of B12 complexes in the terminal ileum.
The Last Supper (Italian: Il Cenacolo [il tÊeËnaËkolo] or L'Ultima Cena [Ëlultima ËtÊeËna]) is a late 15th-century mural painting by Leonardo da Vinci in the refectory of the Convent of Santa Maria delle Grazie, Milan. It is one of the world's most famous paintings.
Raising of the Cross 1610 Oil on panel, 460 x 340 cm (centre panel), 460 x 150 cm (wings) O.-L. Vrouwekathedraal, Antwerp: Rubens painted the triptych for the high altar of Antwerp's church of St Walpurgis, which was demolished in 1817. That explains the inclusion of Amand, Walpurgis and Eligius on the back side of the wings. The triptych marked Rubens' sensational introduction of the Baroque style into Northern art.