Vitamin A intake of Brazilian mothers and retinol concentrations in maternal blood, human milk, and the umbilical cord - Deminice, Thalia Manfrin Martins; Ferraz, Ivan Savioli; Monteiro, Jacqueline Pontes; Jordão Júnior, Alceu Afonso; Ambrosio, Lívia Maria Cordeiro Simões; Almeida, Carlos Alberto Nogueira de (Journal of International Medical Research, 2018)