Encyclopedia > Cobalamin

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Cobalamin or vitamin B12, is needed for nerve cells and red blood cells, and to make DNA. It is an organometallic compound with a trivalent cobalt ion bound inside a corrin ring.

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List of people on stamps of Colombia

... Salavarrieta[?] (1910) Francisco de Paula Santander[?] (1910) Carlos Martinez Silva[?] (1948) Antonio Josť de Sucre y Alcala[?] (1887) St Theresa[?] (1970) ...