1. a Laboratory of Pharmaceutical Analysis, Department of Pharmacy, Faculty of Pharmacy , University of Concepcion , Concepcion , Chile
2. c Laboratory of Lipoproteins and Atherogenesis in Endothelial Function, Department of Biochemistry and Clinical Immunology, Faculty of Pharmacy , University of Concepcion , Concepcion , Chile
3. b Department of Pharmacy, Faculty of Pharmacy , University of Concepcion , Concepcion , Chile