1. Stratum Engineering, Inc.; 3751 Pennridge Dr., Suite 119 Bridgeton MO 63044
2. Dep. of Plant and Soil Sciences, 052 Agricultural Hall; Oklahoma State Univ.; Stillwater OK 74078
3. Veterinary Medicine Diagnostic Laboratory, 1600 E. Rollins St.; Univ. of Missouri-Columbia; Columbia MO 65205