Department of Preventive Medicine, Division of Bioinformatics, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.
John T Casagrande &
Paul D Thomas
A.M. developed the software code for the website. J.T.C. maintained the database and web servers. H.M. generated the content of the system and supervised the project. P.D.T. provided the funding and supervised the project. H.M. wrote the manuscript with contributions from all the authors.
Competing financial interests
The authors declare no competing financial interests.