1. From the University of Texas Medical Branch, Galveston, TX (HHS, NGE, NWA, RMC, VMSR, HHD, CDR, and RAP); the Grand Forks Human Nutrition Research Center, Grand Forks, ND (JGP); the Division of Hematology-Oncology and Karmanos Cancer Center, Wayne State University School of Medicine, Detroit, MI (ASP and FWJB); Department of Pediatrics, Immunology Division, Children's Hospital, Detroit, MI (JK),