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Houghton AN, Mintzer D, Cordon-Cardo C, Welt S, Fliegel B, Vadhan S, Carswell E, Melamed MR, Oettgen HF, Old LJ.Houghton AN, et al.Proc Natl Acad Sci U S A. 1985 Feb;82(4):1242-6. doi: 10.1073/pnas.82.4.1242.Proc Natl Acad Sci U S A. 1985.PMID: 3883355Free PMC article.Clinical Trial.