David Croft Gavin O'Kelly Guanming Wu Robin Haw Marc Gillespie Lisa Matthews Michael Caudy Phani Garapati Gopal Gopinath Bijay Jassal Steven Jupe Irina Kalatskaya Shahana Mahajan Bruce May Nelson Ndegwa Esther Schmidt Veronica Shamovsky Christina Yung Ewan Birney Henning Hermjakob Peter D'Eustachio Lincoln Stein Reactome: a database of reactions, pathways and biological processes. 691-697 2011 39 Nucleic Acids Research Database-Issue http://dx.doi.org/10.1093/nar/gkq1018 db/journals/nar/nar39.html#CroftOWHGMCGGJJKMMNSSYBHDS11