We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleDevelopment. Longing for ligand: hedgehog, patched, and cell death.AuthorsGuerrero, Isabel; Ruiz i Altaba, ArielPublicationScience (New York, N.Y.), 2003, Vol 301, Issue 5634, p774ISSN1095-9203Publication typeJournal ArticleDOI10.1126/science.1088625