MEDICAL SCIENCES Correction for “Noninvasive imaging of tumor progression, metastasis, and fibrosis using a nanobody targeting the extracellular matrix,” by Noor Jailkhani, Jessica R. Ingram, Mohammad Rashidian, Steffen Rickelt, Chenxi Tian, Howard Mak, Zhigang Jiang, Hidde L. Ploegh, and Richard O. Hynes, which was first published May 8, 2019; 10.1073/pnas.1817442116 (Proc. Natl. Acad. Sci. U.S.A. 116, 14181–14190).
The authors note that the following statement should be added to the Acknowledgments: “This work was also supported by Melanoma Research Alliance Award 51009 (to H.L.P.).”