id	domain	url
hls-5011	whqlibdoc.who.int	http://whqlibdoc.who.int/publications/2011
hls-5011	whqlibdoc.who	http://whqlibdoc.who
hls-5011	whqlibdoc.who.int	http://whqlibdoc.who.int/publications/2011
hls-5011	www.who.int	http://www.who.int/tb/laboratory/tb-sputum-microscopy-handbook.pdf