The authorship network of genome-wide association studies

Interesting piece in Nature Genetics describing authorship networks for GWAS studies:

[...] The sample sizes necessary to identify robust and replicable findings are beyond those achievable by single groups, and collaborations have rapidly evolved to augment statistical power. We sought to describe the collaborative networks that emerged as part of GWAS. We used the National Human Genome Research Initiative (NHGRI) GWAS catalog¹ and PubMed to identify the authors of 604 GWAS published from the first report in 2005 up to the last complete year, 2010 [...] (and) constructed network diagrams in the form of graphs, where nodes are authors and edges connect coauthors on a GWAS paper. [...]