Diseases in TwinsTwins, MonozygoticTwinsPhosphatidylethanolamine Binding ProteinTwins, ConjoinedTwins, DizygoticSister Chromatid ExchangeTwin Studies as TopicPregnancy, TwinPregnancy, MultipleChromosome SegregationChromosomal Proteins, Non-HistoneFetofetal TransfusionSiblingsPhylogenyPregnancyCell Cycle ProteinsKinetochoresSeparaseCentromereAnaphaseCrossing Over, GeneticMitosisTriplets