http://www.explainstuff.com Interesting Short Science Articles on science, health, technology, medicine. Thu, 02 Feb 2012 04:07:52 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 http://www.explainstuff.com/2009/08/17/role-of-placental-membrane/ http://www.explainstuff.com/2009/08/17/role-of-placental-membrane/#comments Mon, 17 Aug 2009 12:32:47 +0000 admin http://www.explainstuff.com/?p=1236 http://www.explainstuff.com/2009/08/17/role-of-placental-membrane/feed/ 1