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Nature Immunology 4, 794–800 (1 August 2003) | doi:10.1038/ni955

Binding of the Drosophila cytokine Sp|[auml]|tzle to Toll is direct and establishes signaling

Alexander N R Weber , Servane Tauszig-Delamasure , Jules A Hoffmann , Eric Leli|[egrave]|vre , Hugues Gascan , Keith P Ray , Mary A Morse , Jean-Luc Imler & Nicholas J Gay