[goshx]

http://journals.plos.org/plosone/article?id=10.1371/journal....

http://www.nature.com/bjc/journal/v109/n11/full/bjc2013510a....

http://www.sciencedirect.com/science/article/pii/S0753332213...

http://www.sciencedirect.com/science/article/pii/S0753332212...