Here's where I get mine, if Diane's link still isn't working when you check back <img src="i/expressions/face-icon-small-wink.gif" border="0"> :
<a target=_blank class=ftalternatingbarlinklarge href="http://www.theranaturals.com">Theranaturals</a>
It's the 500 mg GSH Caps.
And here's the link to the article:
<a target=_blank class=ftalternatingbarlinklarge href="http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6X2D-4SJR2HD-1&_user=10&_coverDate=09%2F30%2F2008&_alid=838986214&_rdoc=3&_fmt=high&_orig=search&_cdi=7268&_sort=d&_docanchor=&view=c&_ct=87&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=a1f4c10c856b3e504b86bf4dab483998">Article link</a>
It's dated <div class="FTQUOTE"><begin quote>Copyright © 2008 European Cystic Fibrosis Society" from "Journal of Cystic Fibrosis
Volume 7, Issue 5, September 2008, Pages 433-436</end quote></div>, and also says: <div class="FTQUOTE"><begin quote>Received 19 June 2007; revised 30 January 2008; accepted 14 March 2008. Available online 21 May 2008</end quote></div> if any of that helps, lol <img src="i/expressions/face-icon-small-wink.gif" border="0"> .