1. Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
2. National Institute of Medical Sciences and Nutrition, Mexico City, Mexico, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
3. Children's Hospital of Fudan University, Shanghai, China, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
4. Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
5. Mead Johnson Pediatric Nutrition Institute, Evansville, IN, Cincinnati Children's Hospital Medical Center, Cincinnati, OH