http://psuc3d.wordpress.com/2012/03/11/blog-due-11032012/#comment-43
http://ohhaiblog.wordpress.com/2012/03/11/facebook-and-syphilis-are-they-linked/#comment-73
https://dybanneediu.wordpress.com/2012/03/10/why-is-the-file-drawer-problem-a-problem/#comment-46