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Ferrara N, Carver-Moore K, Chen H, Dowd M, Lu L, O'Shea KS, Powell-Braxton L, Hillan KJ, Moore MW.Ferrara N, et al. Among authors: chen h.Nature. 1996 Apr 4;380(6573):439-42. doi: 10.1038/380439a0.Nature. 1996.PMID: 8602242Free article.
Aiello LP, Pierce EA, Foley ED, Takagi H, Chen H, Riddle L, Ferrara N, King GL, Smith LE.Aiello LP, et al. Among authors: chen h.Proc Natl Acad Sci U S A. 1995 Nov 7;92(23):10457-61. doi: 10.1073/pnas.92.23.10457.Proc Natl Acad Sci U S A. 1995.PMID: 7479819Free PMC article.