1. Gulf Coast Seafood Laboratory, U.S. Food and Drug Administration, Dauphin Island, AL 36528, USA
2. Gulf Coast Research Laboratory, P.O. Box 7000, 703 East Beach, Ocean Springs, MS 39564, USA
3. Center for Food and Applied Nutrition, U.S. Food and Drug Administration, Mod‐1, 8301 Muirkirk Road, Laurel, MD 20708, USA
4. Center for Food and Applied Nutrition, U.S. Food and Drug Administration, Washington, D.C. 20204, USA
5. Toxinology Division, U.S. Army Medical Research Institute of Infectious Diseases. Fort Detrick, MD 21702, USA