Cover photograph (Copyright © 2003, American Society for Microbiology. All Rights Reserved.): ErbB2 expression in mouse muscle spindles examined through immunocytochemistry. ErbB2 expression was readily observed in wild-type intrafusal muscle fibers, in the capsule surrounding the equatorial region, and in the neuron adjacent to the muscle spindle. (See related article in July 2002, issue 13: vol. 22, p. 4714.)