From:	Richard SMITH <qsarcadd(-(at)-)yahoo.com>
Date:	Sat, 2 Feb 2002 02:26:54 -0800 (PST)
Subject:	qsar IC50

From:	Sengen Sun <sengensun.,at,.yahoo.com>
Date:	Sat, 2 Feb 2002 11:00:44 -0800 (PST)
Subject:	Re: Mechanism of concerted cycloadditions