1. University of California at San Francisco (P.N.), Valley Research, Fresno, California 93720
2. Laval Clinical Research Center (R.D.), Quebec, Canada G1V 4G2
3. Pennington Biomedical Research Center (W.C.), Baton Rouge, Louisiana 70808
4. McGill Nutrition and Food Science Center (J.-F.Y.), Montreal, Quebec, Canada H3A 1A1
5. Pfizer Global Research and Development (R.E., R.R., J.T.), New London, Connecticut 06320