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Cover Figure

COVER This week features a Protocol for detecting extracellular ATP electrophysiologically by means of cells expressing ATP-sensitive channels. The image depicts positioning of the sensor cell. [Image: S. Hayashi, A. Hazama, A. K. Dutta, R. Z. Sabirov, and Y. Okada, National Institute for Physiological Sciences, Japan]

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Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882