On Sat, 28 Sep 2002, Rich Greenberg wrote: > } 'COX-2' or '9-NC' > > Also try "COX-2". Single & double quotes have somewhat different > meanings. By which Rich means that a sigle quote, 'COX-2', is case insensitive so it will hit on cox-2 as well as COX-2, while a double quote, "COX-2" makes the search case sensitieve so COX must be uppercase to get a hit. However, if there is such a thing as NCOX-2 "COX-2" will hit on it, so if you don't want that you need a space: " COX-2". Or, if there is such a thing a COX-21 and you don't want that, you need a space: "COX-21 ". If, in addition to COX-2 there are also NCOX-2 and COX-21 and you want only COX-2 put a space at either end: " COX-2 ". Douglas Winship [log in to unmask]