Current Biology · 1995 · 299 citations · 50 references
Life SciencesBiologyDevelopmental BiologyEmbryogenesisMorphogenesisTissue DifferentiationAngiogenesisBone Morphogenetic Protein SignalingBud MorphologyGrowth Factor SignalingLimb DevelopmentSomite DevelopmentLimb Bud DevelopmentLimb MorphogenesisLimb Outgrowth
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Sonic hedgehog mediates the polarizing activity of the ZPA
Robert D. Riddle, Randy L. Johnson, Ed Laufer et al. · Cell · 1993 · 2.3K citations