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.
The Last Supper â Leonardo da Vinci. This world famous painting is not shown in a museum, but rather covers the back wall of the dining hall at Santa Maria delle Grazie monastery in Milan, Italy. It was painted by the most famous artist of all time, Leonardo da Vinci in the late 15th-century.