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 Painting. American Gothic, 1930 by Grant Wood. All rights reserved Wood Graham Beneficiaries/Licensed by VAGA, New York, NY. When viewing the painting, it is important to realize the extent to which Wood designed and conceptualized American Gothic. At first look, many believe American Gothic is a realistic painting, and in a sense this is true.