to all the people wasting comments' space and people's attention with pointless [even more so when they are trying to make a point by making such a request] requests for links - there is Google for that.
"Although our work strongly suggests that cancer can be treated and/or prevented by limiting BG, some caution must be exercised in extrapolating our results to humans."
"potential of being both a novel cancer prophylactic and treatment, warranting further investigation of its applicability"
This is solid work, but the authors are shying away from claiming a proof.
Indeed, simple Xenograft experiments in genetically modified mouse models, as the researchers conducted, do not always prove a concept.
For example : http://www.ncbi.nlm.nih.gov/pubmed/21673053 and NIH has a lot of other similar stuff if you're really curious.