id	domain	url
gra-1907	europepmc.org	https://europepmc.org/article/med/29072302
gra-1907	cancerres.aacrjournals.org	https://cancerres.aacrjournals.org/content/77/13_supplement/3532
gra-1907	www.sciencedirect.com	https://www.sciencedirect.com/science/article/pii/s0959804916325266