Hydatidiform MoleTriploidyUterine NeoplasmsAbortion, MissedPregnancyGestational Trophoblastic DiseaseTrophoblastic NeoplasmsPregnancy Trimester, FirstChorionic Gonadotropin, beta Subunit, HumanPolyploidyUltrasonography, PrenatalChorionic GonadotropinTrisomyPregnancy OutcomePregnancy ComplicationsPlacentaPregnancy, AnimalDiploidyChromosome DisordersMolar, ThirdAbortion, SpontaneousPregnancy, EctopicEquisetumFetal DiseasesGestational AgeChromosome AberrationsPregnancy RatePregnancy Trimester, ThirdZygotePregnancy Complications, CardiovascularPregnancy TrimestersPregnancy TestsRetrospective StudiesKaryotypingChromosomes, Human, Pair 13Pregnancy, MultiplePloidiesPrenatal DiagnosisPregnancy in DiabeticsPregnancy, TubalChromosomes, Human, Pair 18Pregnancy Trimester, SecondPregnancy Complications, NeoplasticDown SyndromePregnancy in AdolescencePregnancy Complications, Infectious