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    • Cediel, Gustavo; Olivares Grohnert, Manuel; Brito, Alex; López de Romaña, Daniel; Cori, Héctor; La Frano, Michael R. (SAGE, 2015)
      Background: In recent decades, the general socioeconomic situation in Latin America and the Caribbean countries has improved, and many vitamin A programs have been implemented in an attempt to reduce vitamin A deficiency ...