1. Hematology and Transfusion Center (Hemocentro), University of Campinas (UNICAMP), Campinas 13083-878, Brazil
2. Department of Pathology, Immunology and Laboratory Medicine, New Jersey Medical School, Rutgers University, Newark, NJ 07103, USA
3. Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824-1312, USA