1. Biological and Agricultural Engineering Department; University of Arkansas; 203 Engineering Hall Fayetteville AR 72701
2. USDA-ARS; Poultry Production and Product Safety Research Unit; Fayetteville AR
3. U.S. Geological Survey Arkansas Water Science Center; 401 Hardin Road Little Rock AR 72211
4. U.S. Geological Survey Organic Chemistry Research Laboratory; 4821 Quail Crest Place Lawrence KS 66049