1 ZB MED Information Centre for Life Sciences, Cologne, Germany.
2 Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway.
3 Bayer CropScience SA-NV, Diegem, Belgium.
4 BASF, Ludwigshafen am Rhein, Germany.
5 National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, United States of America.
6 Alzheimer's Research UK, Cambridge, United Kingdom.
7 University of Tennessee Health Science Center, Memphis, Tennessee, United States of America.
8 Georgia State University, Atlanta, Georgia, United States of America.