Will give $135 for sufferers of low back chronic pain, that fit demographic. Details on study here:
http://chronicpain.today.com/2008/06/11/135-for-chronic-lower-back-pain-study-sponsored-by-nih/
http://chronicpain.today.com/2008/06/11/135-for-chronic-lower-back-pain-study-sponsored-by-nih/