Arthur Hirsch wrote: > It looks like this article will be the source of some discussion, so here's a copy that can be used by those people without web browsers. Thank you, Helen, for alerting us; Judith for identifying the source.< Thanks Art, I was on my way out to do some grocery shopping and didn't have time to send the text. Judith -- Judith Richards, London, Ontario, Canada <[log in to unmask]> ^^^ \ / \ | / Today’s Research \\ | // ...Tomorrow’s Cure \ | / \|/ ```````