DuodenoscopyCrohn DiseaseGenetic Predisposition to DiseaseParkinson DiseaseGenotypePolymorphism, GeneticPolymorphism, Single NucleotideAllelesalpha-SynucleinCase-Control StudiesPedigreeGene FrequencyGerm-Line MutationRisk FactorsGenetic TestingDisease SusceptibilityAntiparkinson AgentsPhenotypeMutationFamily HealthHaplotypesGenetic MarkersParkinsonian DisordersGenetic LinkageAge of OnsetNeoplastic Syndromes, HereditaryDisease Models, AnimalGene-Environment InteractionGenome-Wide Association StudyParkinson Disease, SecondaryPelvimetryGenetic Association StudiesDNA Mutational AnalysisPenetranceChromosome MappingLevodopaGlucosylceramidaseHereditySubstantia NigraLewy BodiesHLA-DQ AntigensTwins, MonozygoticGenetic LociGenetic VariationHeterozygoteFamilyCohort StudiesObesityHungaryLinkage DisequilibriumDiabetes Mellitus, Type 2HLA-DQ beta-ChainsBrainDeep Brain StimulationAge FactorsEuropean Continental Ancestry GroupRiskGenes, BRCA1Diseases in TwinsMicrosatellite RepeatsDopamineMultiple System AtrophyIncidenceAsian Continental Ancestry GroupHLA-DRB1 ChainsNeoplasms, Multiple PrimaryOdds RatioChromosomes, Human, Pair 2Lod ScoreRisk Assessment1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineEnvironmentNeoplasmsCausalityDopaminergic NeuronsTime FactorsOxidopamineAutoimmune DiseasesHomozygoteSubthalamic NucleusPolymorphism, Single-Stranded ConformationalNeoplasms, Second PrimaryLewy Body DiseasePolymerase Chain ReactionMice, Inbred C57BLEnvironmental ExposureDisease ProgressionBreast NeoplasmsNeurodegenerative DiseasesInheritance PatternsPrevalenceHLA AntigensMolecular Sequence DataMPTP PoisoningMice, Inbred StrainsAutoimmunityPregnancyThyroiditis, AutoimmuneGait Disorders, NeurologicSyndrome