Hello all, Here I am again! I got involved in setting up a simple database that includes IDs from Genbank, LocuLink, Ensemble and Swissprot. We basically want to get all the relevant IDs (given just a single one). I never looked at the eFetch module, would that help in querying these databases? Anyone knows of any other php code that would help? If I write some code, what format should I use so that it will be more widely usuable? Best, Nico