FGF17b and FGF18 have different midbrain regulatory properties from FGF8b or activated FGF receptors.
Liu A, Li JY, Bromleigh C, Lao Z, Niswander LA, Joyner AL. FGF17b and FGF18 have different midbrain regulatory properties from FGF8b or activated FGF receptors. Development. 2003 Dec; 130(25):6175-85.