About the Cover
Cover picture: The oasis model of the Ca2+ spark-STOC microdomain in smooth muscle cells. BK channels at spark site are confined to an area (dotted circle, upper panel) less than one square micron. For the extended oasis model, a ring of nonactivated BK channels lies just outside dotted circle (not depicted). Lower panel is a cross-sectional view marked by the black solid line in the upper panel. See related article by ZhuGe, R., K.E. Fogarty, R.A. Tuft, and J.V. Walsh, Jr. in this issue, pp. 15-27.
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