http://www.sleepdisordersguide.com/blog/insomnia/circadin%c2%ae-prolonged-release-melatonin-for-primary-insomnia-recommended-for-approval-in-the-eu/ Your Guide to A-Z Sleep Disorders ! Tue, 18 Nov 2008 21:46:01 +0000 http://wordpress.org/?v=2.6.1