MisoprostolAbortifacient Agents, NonsteroidalOxytocicsAdministration, IntravaginalAdministration, SublingualAbortifacient Agents, SteroidalAbortion, InducedAnti-Inflammatory Agents, Non-SteroidalVacuum CurettagePostpartum HemorrhageAbortion, IncompleteCervical RipeningMifepristoneAbortifacient AgentsPregnancy Trimester, FirstDilatation and CurettageDiclofenacUterine HemorrhageLabor, InducedPregnancyDilatationNaproxenAnti-Ulcer AgentsHysteroscopyAlprostadilGastrointestinal DiseasesStomach UlcerLabor Stage, ThirdCyclooxygenase 2 InhibitorsAdministration, OralIbuprofenButanonesOxytocinPiroxicamCervix UteriTreatment OutcomeAdministration, BuccalEndometritisMedicine, Tibetan TraditionalProstaglandins E, SyntheticPeptic UlcerAbortion, MissedPregnancy Trimester, SecondCyclooxygenase InhibitorsAspirinMauritaniaErgonovineClostridium sordelliiHome ChildbirthDrug Therapy, CombinationMenstruation-Inducing AgentsDouble-Blind Method