In this month’s Editorial (doi:10.1038/ng.3088) we mention 66 articles in this journal published between 2008 and 2013 that cite dbGaP accession codes and we took a preliminary look at citation of 13 pairs of GWAS articles with and without a dbGaP accession published on the same trait on the same day in the same journal (in the case of more than two simultaneous articles, non-overlapping pairs were assigned by sequential DOI number). Here are the references and some of the citation information for readers who want to investigate this area further.  Read more