The CNIO, on which premises this site's servers are situated, will undergo a complete exchange of its electric installations. Due to the ensuing construction, most servers will have to shut down for a period of 1 1/2 weeks. Therefore, please note that www.biocreative.org will not be available from May, 23rd to June, 2nd (inclusive). We kindly ask you to excuse any inconvenience this inevitable downtime might cause.