1. Department of Biochemistry of Micronutrients, German Institute of Human Nutrition-Potsdam-Rehbrücke (DIfE), Nuthetal, Germany.
2. Depatamento de Biochímica, Universidad de la República, Montevideo, Uruguay.
3. Dipartimento di Medicina Moleculare, Università degli Studi di Padova, Padova, Italy.