6th Annual Immunochemistry Summit Meeting, Las Vegas, 8-9 September 1997 / ed. Jeanette M. van Emon, Claire L. GerlachSpecial issue: Immunochemistry summit VII $ and: Third Workshop on Biosensors and Biological Techniques in Environmental Analysis, Las Vegas, Nevada, USA, December 1-3, 1998 / ed. by Jeanette M. Van Emon, Barbara J. Queen, ed. ass