@article {129, title = {Hedgehog signaling in animal development: paradigms and principles.}, journal = {Genes \& development}, volume = {15}, year = {2001}, month = {2001 Dec 1}, pages = {3059-87}, keywords = {Animals, Body Patterning, Central Nervous System, Drosophila Proteins, Embryo, Mammalian, Gene Expression Regulation, Developmental, Hedgehog Proteins, Humans, Insect Proteins, Models, Biological, Phylogeny, Signal Transduction, Trans-Activators}, issn = {0890-9369}, doi = {10.1101/gad.938601}, author = {Ingham, P W and McMahon, A P} }