RegenerationDipsacaceaeExtremitiesTurbellariaNotophthalmus viridescensNotophthalmusAmbystomaForelimbHirudo medicinalisLiver RegenerationNerve RegenerationRegenerative MedicineSalamandridaeWound HealingStem CellsLimb BudsBone RegenerationHepatectomyAnimal FinsPlanariansCell ProliferationTissue EngineeringTriturusImmunohistochemistryCell DifferentiationAmputationTailMuscle, SkeletalSignal TransductionTime FactorsCells, CulturedUrodelaRats, Sprague-DawleyLiverLimb SalvagePleurodelesLimb Deformities, CongenitalWilms TumorNerve TissueMice, Inbred C57BLIn Situ HybridizationZebrafishAmputation StumpsPhantom LimbHindlimbGene Expression Regulation, DevelopmentalAnaplasiaMesodermMorphogenesisAnimal StructuresGenes, HomeoboxCell DedifferentiationPentosan Sulfuric PolyesterFibroblast Growth FactorsCartilageHomeodomain ProteinsZebrafish ProteinsTretinoinMSX1 Transcription FactorEpidermisLegDermisAnimals, Genetically ModifiedLower ExtremityHedgehog ProteinsIschemiaDenervationMolecular Sequence DataXenopus ProteinsCellular MicroenvironmentChoristomaPAX7 Transcription FactorXenopus laevis