id	domain	url
gra-822	dx.doi.org	http://dx.doi.org/10.1111%2fj.1468-3083.2011.03
gra-822	www.ncbi.nlm.nih.gov	http://www.ncbi.nlm.nih.gov
gra-822	dx.doi.org	http://dx.doi.org/10.1043%2f1543-2165%282008%29132%5
gra-822	www.ncbi.nlm.nih.gov	http://www.ncbi.nlm.nih.gov