id	domain	url
ihlr-21715	doi.org	http://doi.org/10.18060/3911.0040
ihlr-21715	doi.org	https://doi.org/10.1111/cts.12255
ihlr-21715	doi.org	https://doi.org/10.1001/jama.2015.7691
ihlr-21715	doi.org	http://doi.org/10.1200/jco.2014.60.6004