Human MigrationEmigration and ImmigrationHistory, AncientAmericasGeographyAfrica, NorthernGenetics, PopulationChromosomes, Human, YPopulation DynamicsPhylogenyHaplotypesDNA, MitochondrialClimateGene FlowAfricaGenetic VariationEthnic GroupsCell MovementBiological EvolutionAnimal MigrationEvolution, MolecularGene FrequencyCell Migration InhibitionForeign-Body MigrationSequence Analysis, DNAGenotypeCell AdhesionCell Migration AssaysCells, CulturedMacrophage Migration-Inhibitory FactorsSignal TransductionChemotaxisTransendothelial and Transepithelial MigrationChemotaxis, LeukocyteCell Line, TumorCell ProliferationWound HealingDrug Administration Routes