The SWISS-PROT protein knowledgebase and its supplement TrEMBL in 2003.
Brigitte BoeckmannAmos BairochRolf ApweilerMarie-Claude BlatterAnne EstreicherElisabeth GasteigerMaria Jesus MartinKarine MichoudClaire O'DonovanIsabelle PhanSandrine PilboutMichel SchneiderPublished in: Nucleic Acids Res. (2003)