1. Atlanta Veterans Affairs Medical CenterDecaturGAUSA
2. Emory University School of MedicineAtlantaGA30305USA
3. Lipid Metabolism Laboratory, Jean Mayer USDA Human Nutrition Research Center on AgingTufts UniversityBostonMAUSA
4. Faculty of Medicine, Siriraj HospitalMahidol UniversityBangkokThailand
5. Metabolic Research Centre, School of Medicine and Pharmacology, Royal Perth HospitalUniversity of Western AustraliaPerthWAAustralia
6. Mass Spectrometry Unit, Jean Mayer USDA Human Nutrition Research Center on AgingTufts UniversityBostonMAUSA