id	domain	url
mkg-996	www.pubmedcentral.nih.gov	http://www.pubmedcentral.nih.gov
mkg-996	en.wilkipedia.org	http://en.wilkipedia.org/w/index
mkg-996	ajo.oxfordjournals.org	http://ajo.oxfordjournals.org/cgi/content