Correction

APPLIED BIOLOGICAL SCIENCES. For the article “In vitro and in vivo studies of a VEGF₁₂₁/rGelonin chimeric fusion toxin targeting the neovasculature of solid tumors,” by Liesbeth M.Veenendaal, Hangqing Jin, Sophia Ran, Lawrence Cheung, Nora Navone, John W. Marks, Johannes Waltenberger, Philip Thorpe, and Michael G. Rosenblum, which appeared in number 12, June 11, 2002, of Proc. Natl. Acad. Sci. USA (99, 7866–7871), on page 7866, in the last sentence of the Introduction, “Caprice's sarcoma cells” should read “Kaposi's sarcoma cells.”