1. a Tulane Medical Center , School of Public Health , New Orleans , LA , 70112 , USA
2. b Division of Epidemiology and Clinical Applications , National Heart, Lung, and Blood Institute (NHLBI) , Bethesda , MD , 20892 , USA
3. c Center for Health Promotion , University of Texas at Austin , Austin , TX , 78712 , USA
4. d University of Minnesota, Division of Epidemiology , Minneapolis , MN , 55454-1015 , USA
5. e University of California, San Diego, Community Pediatrics, Department of Pediatrics , La Jolla , CA , 92093-0927 , USA
6. f Nutrition Program , New England Research Institute, Inc. , Watertown , MA , 02172 , USA
7. g Division of Epidemiology and Clinical Applications NHLBI , Bethesda , MD , 20892 , USA
8. h Tulane University Medical Center, School of Public Health , New Orleans , LA , 70112 , USA
9. i University of Minnesota, Division of Epidemiology, School of Public Health , Minneapolis , MN , 55454-1015 , USA
10. j Frances Stern Nutrition Center, New England Medical Center Hospital , Boston , MA , 02111 , USA