Erratum
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In the article “Integrin Receptor Imaging of Breast Cancer: A Proof-of-Concept Study to Evaluate 99mTc-NC100692,” by Bach-Gansmo et al. (*J Nucl Med.* 2006;47:[1434–1439](http://jnm.snmjournals.org/lookup/volpage/47/1434?iss=9)), the legends for Figures 4 and 5 were inadvertently transposed. The authors regret the error.