@article {66, title = {Dorsal{\textemdash}ventral signaling in limb development}, journal = {Current Opinion in Cell Biology}, volume = {9}, year = {1997}, month = {12/1997}, pages = {867 - 876}, issn = {09550674}, doi = {10.1016/S0955-0674(97)80090-7}, author = {Irvine, Kenneth D and Vogt, Thomas F} }